Question

find the base of triangle whose area is 220 cm2 and height is 11cm.​

Answer 1

Area - 1/2 x base x height
220 - 1/2 x b x 11
220/5.5 = b
b= 40

Answer 2

$\sf We \: have:-$

$\sf ⇒Area \: of \: triangle = 220 {cm}^{2}$

$\sf ⇒Height = 11cm$

$\sf Now$

$\sf Base = \frac{ \:Area \: }{ \: \: height\: } \times 2$

$\sf \frac{220}{11} \times 2 \\ = 40cm$

$\sf ∴ Base \: of \: triangle \: is \: 40cm$