1.

A rhombus has sides of length 10cm, and the angle between two adjacent sides is 76°. Find the length of the longer diagonal of the rhombus

Answer»

Answer:

LET the LENGTH of ONE of the diagonals be 2x and the other be 2Y, then

cos (76/2) = x/10

x = 10 cos 38 = 7.88 CM

sin (76/2) = y/10

y = 10 sin 38 = 6.16 cm



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