Question

Find the area of ABC , a=7cm ,b = 14 cm and C=60°

Answer 1

a = 7 cm

b = 14cm

$\alpha = 60^{0}$

$AREA = [a][b] \frac{sin \alpha }{2} \\AREA = [7][14]\frac{sin(60^{0} )}{2}\\ AREA = 42.43524 cm^{2} [approx]$