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01-05-2017
Mathematics

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Find the lateral area of the right prism with height 0.3 dm, if the base of the prism is Isosceles trapezoid with bases of 3 cm and 5 cm, and legs of 4 cm.

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HomertheGenius HomertheGenius

08-05-2017

The lateral area of that prism consists of 4 rectangles.
h = 0.3 dm = 30 cm.
The lateral area:
A = ( a + b + c + c ) · h
A = ( 5 + 3 + 4 + 4 ) · 30
A = 16 · 30 = 480 cm²
Answer: The lateral area of the prism is 480 cm².

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