Question

What is the surface area?
9 mm
5 mm
2 mm
square millimeters

Answer 1

Explanation:

TSA=2(l x b) +2(l x h) +2(b x h)

= 2x2x5+2x2x9+2x5x9

=20+36+90

=146mm squared

A small 2 on top of mm

Hope answer helps