Question

the sides of triangle are 22, 20and 18 find its area​

Answer 1

1st it is right angled triangle so the formula will use = 1/2 × B × H

SO THE AREA OF TRIANGLE IS == 180

Answer 2

✯✯ QUESTION ✯✯

The sides of triangle are 22, 20and 18 find its area..

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✰✰ ANSWER ✰✰

$Sides\:of\:Triangle:.$

$a=22cm\: b=20cm\: c=18cm$

$S=\dfrac{a+b+c}{2}$

$S=\dfrac{22+20+18}{2}=\dfrac{60}{2}$

$⇝\cancel\dfrac{60}{2}⟹30cm$

$\large{\boxed{\bold{\bold{\red{\sf{Area=\sqrt{s (s-a) (s-b) (s-c)}}}}}}}$

$⇝\sqrt{30 (30-22) (30-20) (30-18)}$

$⇝\sqrt{30 (8) (10) (12}$

$⇝\sqrt{3×5×2×2×2×2×5×2×3×2×2}$

$⇝2×3×5×2×2\sqrt{2}$

$\large{\underline{\underline{\bold{\blue{\sf{Area⟹120\sqrt{2}cm^2}}}}}}$