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Mathematics 10 Online
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.

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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