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An open topped box has a square base bottom and a height of 7cm If the surface area of the five sides of the box is 165 cm squared find the dimensions of the square base?
Wiki User
∙ 13y ago
4 x h x b + b2 = 165
4 x 7 x b + b2 = 165
28b + b2 = 165
0 = b2 + 28b - 165
using quadratic formula
b = 5
Wiki User
∙ 13y ago
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