Answer:
99cm²
Step-by-step explanation:
SA of Base =
SA = LxW
SA = 2x10
=20cm²
SA of 2 Triangular Sides (6.3x10)
Here, we know that to find 1 triangle's surface area, we have to do [tex]\frac{1}{2}[/tex]xBxH, but because we are finding the SA of 2 sides, we will keep it normal.
SA = BxH
SA = 10x6.3
= 63cm²
SA of Triangular Sides (8x2)
Same here, we will just keep it normal instead of doing [tex]\frac{1}{2}[/tex]xBxH
SA = BxH
SA = 2x8
= 16cm²
Now, add all of the SA of different parts of the Rectangular Pyramid.
20+63+16=
83+16=
99cm²
So hence, your answer is 99cm²
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