1.

A rhombus of side 20cm has two angles of 60degree each, find the length of the diagonals.

Answer»

Step-by-step EXPLANATION:

ΔAOD

sin30°=AO/AD

1/2=AO/20

AO=10cm

AC=2AO=20cm

now

cos30°=OD/AD

√3/2=OD/20

OD=10√3cm

BD=2OD=20√3cm



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