[GEOMETRY] What is the surface area of the right prism

QUESTION POSTED AT 26/03/2020 - 02:26 PM

Related questions

Who knows how to do area? plz help

The answer is D) 15 square units for the formula of a parallelogram is length times height, the way I solved it was I graphed to get a visual and understand , I see that the height is 3 and the length is 5 so 3•5 is 15
( feel free to ask follow up questions)

ANSWERED AT 28/03/2020 - 12:53 PM


QUESTION POSTED AT 28/03/2020 - 12:53 PM

Ιғ a cιrcle нaѕ a radιυѕ oғ 12 cм and a ѕecтor deғιned вy a 120 degree arc, wнaт ιѕ тнe area oғ тнe ѕecтor

120
times 12 - 360
it should give you the right answer if you solve the problem like that

ANSWERED AT 28/03/2020 - 12:46 PM


QUESTION POSTED AT 28/03/2020 - 12:46 PM

Surface area help please❤️

The answer is D because it 172.8 cm 

ANSWERED AT 28/03/2020 - 12:44 PM


QUESTION POSTED AT 28/03/2020 - 12:44 PM

What is the surface are of this??? I need to know now

The formula to find the surface area of a cylinder is...
2π(r)(h) + 2π(r)² = Surface Area

The height is 8 feet and the radius is 4 feet.  Plug and solve!
After plugging in and solving, you should get an answer of roughly 301.59 feet.


ANSWERED AT 28/03/2020 - 12:42 PM


QUESTION POSTED AT 28/03/2020 - 12:42 PM

Theo builds the first layer of a rectangular prism using 4 unit cubes. he adds 3 more layers of 4 unit cubes each. how many unit cubes does he use for the prism?

First you multiply 3 and 4 to get 12, then add 4 to get 16. There is also another way to do it you can draw a picture of 4 blocks then add 3 more of the 4 blocks then add one more of the 4 blocks to get 16. 16 is the answer! Hope this helped ( :

ANSWERED AT 28/03/2020 - 12:36 PM


QUESTION POSTED AT 28/03/2020 - 12:36 PM

What is the area of triangle DEF? Round to the nearest tenth of a square unit. 10.3 square units 18.0 square units 20.0 square units 20.6 square units

Since we are given 2 sides and 2 angles, we can use the Side Angle Side (SAS) method. The area of a triangle is given by the formula:
Area = absinC/2; where a and b are adjacent sides and C is the angle between a and b.

Area = 5*8*sin31°/2 = 10.3 square units.

ANSWERED AT 28/03/2020 - 12:34 PM


QUESTION POSTED AT 28/03/2020 - 12:34 PM

What is the shaded area

I cant answer it, because i dont see anything

ANSWERED AT 28/03/2020 - 12:26 PM


QUESTION POSTED AT 28/03/2020 - 12:26 PM

Help Me With This Please #Geometry

First, you find the area of one triangle.

Area of Triangle= 1/2 base x height

here we plug in

(1/2)5 x 7
2.5 x 7
17.5

So 17.5 is the area of one triangle, you have 4
so we multiply 17.5 x 4= 70

Now we need to find the area of the base which is a square so the area = length x width or side x side

plug in 5 x 5= 25

so we add everything up 70+25= 95

Answer is choice c 95 ft sq.

ANSWERED AT 28/03/2020 - 12:25 PM


QUESTION POSTED AT 28/03/2020 - 12:25 PM

SOMEONE PLEASE SHOW YOUR WORK What is the surface area of the figure? A. 270 cm2 B. 320 cm2 C. 135 cm2 D. 160 cm2



ok, so we now just have 4 normal sides and 2 L shapes

L shape can be cut into 2 rectangles 
5 by 5 and 5 by 10 so total of 75 is the L
2 L's so 
2*75=150

the sides
4 of them
they all are 10 by 3
10*3*4=120



answer is A


ANSWERED AT 28/03/2020 - 12:24 PM


QUESTION POSTED AT 28/03/2020 - 12:24 PM

What is the diameter of a circle whose area is 532 sq ft?

D=2r is your answer
-TheQuestClub

ANSWERED AT 28/03/2020 - 12:17 PM


QUESTION POSTED AT 28/03/2020 - 12:17 PM

Joel is laying pipe for a sprinkler system before he plants his lawn. The lawn is a rectangle, 15 feet long and 8 feet wide. He needs to lay a piece of pipe that will run along the diagonal of the lawn. It will divide the area of the lawn into two right triangles. What will be the length of the pipe? A. 120 feet B. 17 feet C. 23 feet D. 289 feet

Answer: B is the right answer. Diameter of the given rectangular lawn=17 feet.


Step-by-step explanation:

Given: A rectangular lawn 15 feet long and 8 feet wide.

To find the diagonal of lawn such that it will divide the area of the lawn into two right triangles. [i.e. diagonal will be the hypotenuse]

So by Pythagoras theorem of right triangles,

hypotenuse^2=perpendicular^2+base^2\\\Rightarrow\ diagonal^2=length^2+width^2\\\text{substitute the values of length and width,we get}\\\Rightarrow\ diagonal^2=15^2+8^2=225+64=289\\\Rightarrow\ diagonal=\sqrt{289}= \sqrt{17\times17}=17

Therefore diameter of the given rectangular lawn=17 feet.

ANSWERED AT 28/03/2020 - 12:10 PM


QUESTION POSTED AT 28/03/2020 - 12:10 PM

The area of the paralleogram is 184 units squared

Give the full answer do you mean if it's right or

ANSWERED AT 28/03/2020 - 12:10 PM


QUESTION POSTED AT 28/03/2020 - 12:10 PM

Help me with Geometry

\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
P&({{ 3}}\quad ,&{{ 5}})\quad 
%  (c,d)
Q&({{ c}}\quad ,&{{ d}})
\end{array}\quad
%   coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)=(-2,0)\\\\
-----------------------------\\\\
\left(\cfrac{{{ c}} + {{ 3}}}{2}\quad ,\quad \cfrac{{{ d}} + {{ 5}}}{2} \right)=(-2,0)M\implies 
\begin{cases}
\cfrac{c+3}{2}=-2\\\\
\cfrac{d+5}{2}=0
\end{cases}

if you solve those equations for "c" and "d" respectively, you'd get, well the Q point of c,d

ANSWERED AT 28/03/2020 - 12:10 PM


QUESTION POSTED AT 28/03/2020 - 12:10 PM

Circumference and area of a circle, please help, would really appreciate it

The area of a circle is Pi times the Radius Squared

ANSWERED AT 28/03/2020 - 12:09 PM


QUESTION POSTED AT 28/03/2020 - 12:09 PM

The diameter of a round dinner plate is 10 inches. What's the area of the plate? A. 39.25 square inches B. 39.25 inches C. 78.5 square inches D. 314 square inches

A= pi times r*r so if you are using 3.14 as pi the answer is 78.5 because 5x5=25
25x3.14=78.5

ANSWERED AT 28/03/2020 - 12:08 PM


QUESTION POSTED AT 28/03/2020 - 12:08 PM

Mr. Brown makes a stack of boxes shaped like a rectangular prism. Each box has a volume of 1 ft. What is the total volume of the stack of boxes?

It could be done with two boxes how big is it

ANSWERED AT 28/03/2020 - 12:04 PM


QUESTION POSTED AT 28/03/2020 - 12:04 PM

What is the surface area of a cereal box with length of 8 width of .75 and a height of 1.50

Hey i think it is 8 * .75 * 150 = 9

ANSWERED AT 28/03/2020 - 12:03 PM


QUESTION POSTED AT 28/03/2020 - 12:03 PM

A goat is tied to a 5m rope. What is the area of the grass he can eat?

The rope's length is the radius
area=pir^2
area=pi5^2
area=25pi square meters
if we use pi=3.14
area=78.5 square meters

ANSWERED AT 28/03/2020 - 12:00 PM


QUESTION POSTED AT 28/03/2020 - 12:00 PM

A circular dance stage has a perimeter of 28(3.14) feet. What is the area, in square feet, of this dance stage?

The perimeter (circumference) = 28 * PI.
This means the diameter = 28.
The area = PI*radius^2
area = PI * 14^2
area = PI * 196
area = 615.7521601036 square feet


ANSWERED AT 28/03/2020 - 11:55 AM


QUESTION POSTED AT 28/03/2020 - 11:55 AM

What is the area of a triangle with a base of 8 feet and a hieght of 4 feet

Area = 1/2bh
area = (8 x 4)/2
area = 16

ANSWERED AT 28/03/2020 - 11:49 AM


QUESTION POSTED AT 28/03/2020 - 11:49 AM

A rectangle has a perimeter of 14centimeters and an area of 10 square cm. find its dimensions

Perimeter is all the way around and area is l x w

So 5 x 2 would be 10.....and 5 + 5 + 2 + 2 = 14

So the dimenstions are 5 x 2

ANSWERED AT 28/03/2020 - 11:40 AM


QUESTION POSTED AT 28/03/2020 - 11:40 AM

What is the volume of this triangular prism? A. 125 mm3 B. 50 mm3 C. 55 mm3 D. 250 mm3

A) 125 mm3 v=bh

v=(5*5/2)*10

ANSWERED AT 28/03/2020 - 11:38 AM


QUESTION POSTED AT 28/03/2020 - 11:38 AM

Is there anyone thats good at algebra and geometry and is able to teach the subject, who is in highschool?

I'm pretty good at algebra.

ANSWERED AT 28/03/2020 - 11:34 AM


QUESTION POSTED AT 28/03/2020 - 11:34 AM