Question

if the base is 15 cm and the area of the triangle is 87 cm² find its height

Answer 1

area of triangle is ½×height ×base

$\frac{1}{2} \times h \times 15 = 87 \\ \\ h \times 7.5 = 87 \\ \\ h = \frac{87}{7.5} \\ \\ h = 11.6$

Answer 2

Answer:

Height is 11.6 cm

Step-by-step explanation:

Area of the right angled triangle = 1/2 base x height.   Area is 87 cm² while base is 15cm

87 = 1/2  x 15 x height

i.e. 87 x2 /15 = height   which implies   height = 174/15  => 11.6 cm