favouranthony125 favouranthony125

23-04-2024
Mathematics

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a solid pyramid. SA=B+LA 45 D C 10 A 20 cm B SA C ABCD is a square of side 20 cm. The angle between any sloping edge and the plane ABCD is 55° Calculate the surface area of the pyramid. Give your answer correct to 2 significant figures. Sn - BL

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