Question

$Ina\Delta ABC,\text{it is given that base = 12 cm and height = 5 cm. Its area is}\left(a\right)60c{m}^2\left(b\right)30c{m}^2\left(c\right)15\sqrt{3}c{m}^2\left(d\right)45c{m}^2$

Answer 1

ar.of triangle ABC = (Height * base) /2
(12*5)/2=60/2=30 $c{m}^2$
Answer is (b) 30 $c{m}^2$