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if DeltaABC,a=18,b=24,c=30, then the are...

if `DeltaABC,a=18,b=24,c=30`, then the area of the triangle is

A

196

B

216

C

64

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
2s=a+b+c=18+24+30=72
`therefores=36`
`thereforeDelta=sqrt(s(s-a)(s-b)(s-c))`
`=sqrt(36(18)(12)(6))=216`
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