Question

What do we call the 3D shape below and what is it's SURFACE AREA? Explain how you determined your answer and show your work!!!!

Please help me fast
Math 6th grade 4.10 ​

Answer 1

Explanation:

Square pyramid (since the base is a square)

Area base
`= 8^2=64mm^2` (area of square)

Area each side
`= (1)/(2) base`×
`height` (area triangle formula)

=
`(1)/(2)`×
`8`×
`10`

=
`40 mm^2`

Total area
`= 4triangles + square base`

`=4`×
`40+64`

`=224 mm^2`