Find the total surface area of the
following square pyramid:
9 cm
10 cm
SA = [?]cm2
1 answer:
Answer:
280 cm2
Step-by-step explanation:
1)find the area of square
A=LW
=10×10
=100
2) find the area of triangle
A=B×H÷2
=10×9/2
=45
Coz,there are 4 triangle we multiple by 4
=45×4
=180
3)find the total surface area by adding the two
=100+180
=280cm2
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Answer:
The answer is b.
Step-by-step explanation:
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Attached solution and work.
