Question

Find the surface area of the pyramid

Answer 1

2100

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
`(1)/(2)`bh

A =
`(1)/(2)` 30 x 20

A =
`(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