Geometric calculation Q. Which has the greater surface area? A 6-centimeter cube or a rectangular prism with a 3
centimeter square base and a height of 12 centimeters?

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Ответ:

cmcdonnell6945

11.08.2021

Mathematics

272.6

Step-by-step explanation:

This is an isosceles triangle with base of 21 and sides of 28.

Area formula

A = 1/2bh

Find height:

h = $\sqrt{28^2 - (21/2)^2} = \sqrt{673.75} = 25.96$

Area:

A = 1/2(25.96)(21) = 272.6 (rounded)

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Geometric calculation Q. Which has the greater surface area? A 6-centimeter cube or a rectangular prism with a 3 centimeter square base and a height of 12 centimeters?