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melamori03 [73]
3 years ago
5

Find the surface area of the pyramid

Mathematics
1 answer:
Tcecarenko [31]3 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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