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2 years ago

Find the surface area and volume of the prism

Mathematics

1 answer:

IRINA_888 [86]2 years ago

5 0

Answer:

I only know the first one.

The surface area of the prism is 900 cm2

Step-by-step explanation:

To solve the surface area, we need to find the area of the SURFACE not the inside of the cube. Lets do the rectangles first.

28 x 13 = 364

28 x 5 = 140

28 x 12 = 336

1 1

336

+ 140

364

-------------

8 4 0

Now lets do the triangles.

Remember! To find the area of a triangle, you have to do Base x Height x 1/2 because it's half a rectangle.

(The triangles have the same area)

12 x 5 x 1/2 = 30

+ 30

--------

The last step is to add the areas of the triangles and the rectangles.

840

+ 60

------------

900 cm2

The answer is 900cm2

This Is not copy pasted, I actually put in all this effort.

Hope this helps :) And have a wonderful day! :D

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1 year ago

Andrew estimated the weight of his dog to be 60 lb. The dog’s actual weight was 68 lb.

iragen [17]

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-------------------- = ---------------
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2 years ago

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2 years ago

In February, Alec had 1,586 visitors to his website. In March, he had 1,352 visitors to his website. What is the percentage decr

Deffense [45]

Answer:

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Step-by-step explanation:

Explanation:

Percent decrease is a measure of percent change, which is the extent to which something loses value.

Step 1:

Find out the difference (decrease) between the number of visitors in march and February

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2 years ago

Find the surface area and volume of the prism​

Find the surface area and volume of the prism