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OpenStudy (anonymous):
The surface area of this pyramid 189 cm2 is The area of the square base is 49 cm2 . What is the area of one triangular face of the lateral surface? Show the steps of your solution and explain your work.
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OpenStudy (callisto):
Surface area = 189 = 49 + 4 x (area of lateral surface) Can you do it?
OpenStudy (callisto):
*area of lateral surface -> area of EACH lateral surface
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