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Help a girl out it’s 7th grade math

Help a girl out it’s 7th grade math-example-1
User Qtgye
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7 votes
The answer is B. 756 meters square
User Mariano Ruiz
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Explanation:

height(h) = 12

slant height (l) = 15

side(a) = 18

TSA of pyramid = a^2 + 2al

= (18)^2 + 2* 18*15

= 864m^2

User Archlight
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