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tia_tia [17]
2 years ago
6

a plane is passed through a parallelepiped, cutting all the lateral edges and forming a right section which is a square. If the

lateral area of the solid is 216 cm^2 and a lateral edge measures 9 cm, find the measure of the one side of the section.
Mathematics
1 answer:
velikii [3]2 years ago
3 0
There are several information's already given in the question. Based on those given information's the answer can be easily deduced. 
Lateral area of the solid = 216 cm^2
Lateral edge of the solid = 9 cm
Let us assume the measure of the one side of the section = x
Then
216 = 4s * 9
216 = 36s
s = 6
From the above deduction, it can be concluded that the measure of the one side of the section is 6 cm. I hope that the answer has actually come to your help.
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Answer:    ∠B = 42°   ∠A = 23°  ∠F = 115°

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so m∠CDF = 23°  and ∠FAB≅∠CDF so m∠FAB= 23°

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