vabcd is a solid pyramid. abcd is a square of side 20 cm.
the angle between any sloping edge an...
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Mathematics, 31.10.2019 21:31 tryintopassenioryear
vabcd is a solid pyramid. 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.
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