Asked by Cherie
A triangular prism has an equilateral triangle as its base. The base of the triangle is 10cm and its height is 10cm. The length of the prism is also 10cm.
Find it's surface area
Find it's surface area
Answers
Answered by
Steve
area of equilateral triangle of side s is
a = 1/2 s sā3/2 = 1/4 s^2 ā3
so your prism has two bases and 3 faces
area = 2(1/4 *10^2 ā3) + 3(10*10) = 300+50ā3
a = 1/2 s sā3/2 = 1/4 s^2 ā3
so your prism has two bases and 3 faces
area = 2(1/4 *10^2 ā3) + 3(10*10) = 300+50ā3
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