Question

there is a slide in a park one of its side what has been painted in some colour with a message keep the Park Green and clear if this side of the wall are 15m,11m and 6 m find the area painted in colour​

Answer 1

Answer:

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$\bold\green{- Given \: sides}$

a = 15m

b = 11m

c = 6m

→ P = 15 + 11 + 6 = 32m

$→ Semi \: perimeter = s = \frac{32}{2} = 16m$

$→A= \sqrt{s \: (s - a)(s - b)(s - c)}$

$→A = \sqrt{16(16 - 15)(16 - 11)(16 - 6) }$

→A = √16 × 1 × 5 × 10 = √800

= 20√2m²

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Answer 2

Step-by-step explanation:

Given:

⇒Sides: a=15m, b=11m and c=6m

⇒P=15+11+6=32m

⇒Semi perimeter=S= 232

, S=16m

⇒A= s(s−a)(s−b)(s−c)

(Heron's formula)

⇒A= 16(16−15)(16−11)(16−6)

⇒A= 16×1×5×10 = 800=20 2m²