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2 years ago

Find the surface area of the pyramid

Mathematics

1 answer:

Tcecarenko [31]2 years ago

6 0

Answer:

2100

Step-by-step explanation:

Surface area is the area of all the sides

The area of the rectangular base is W x L = 30 x 30 = 900

Then to find the area of the triangles its $\frac{1}{2}$ bh

A = $\frac{1}{2}$ 30 x 20

A = $\frac{1}{2}$ 600

A = 300

Since there are 4 triangle faces on a pyramid we times 300 x 4 = 1200 is the area of all the triangles

Then we add the area's

1200 + 900 = 2100

Sorry if its wrong

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