What is the surface area of the composite figure?

~Link~

A.) 192mm to the 2nd power
b.) 180mm to the 2nd power
c.) 60mm to the 2nd power
d.) 252mm to the 2nd power

Here's the link
http://go.flvs.net/courses/1/flvs_71_3598_fbc6f0291163480/ppg/educator_math2/v9/07_PP_19_163.jpg

Question

What is the surface area of the composite figure?


~Link~

A.) 192mm to the 2nd power
b.) 180mm to the 2nd power
c.) 60mm to the 2nd power
d.) 252mm to the 2nd power


Here's the link
http://go.flvs.net/courses/1/flvs_71_3598_fbc6f0291163480/ppg/educator_math2/v9/07_PP_19_163.jpg

directrix · Answer

The surface area of the composite will be the sum of the lateral area of the pyramid plus the lateral area of the rectangular solid plus the area of one base of the rectangular solid.

anonymous · Answer

Could write that a less confusing way please?

directrix · Answer

Step One: What is the lateral area of this pyramid? See Attachment.

directrix · Answer

Rectangular Solid: 6*4*4 + 6*6 = 132
Pyramid: 1/2 *6*4*4 = 48
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132 + 48 = 180 square square mm