Question

Find the surface area of the figure below.

PLEASE HELP HAVE TO BE DONE BEFORE 4!

969 mm2

984 mm2

1,040 mm2

1,105 mm2

Answer 1

969
`mm^(2)`

Explanation:

Surface area of a square based pyramid is: lw+4(wh/2)

where l=17mm, w=17mm, h=20mm

SA=lw+4(wh/2)

SA=17(17)+4(
`(17(20))/(2)`)

SA=969
`mm^(2)`

Answer 2

680

Explanation: