Q. 15.0( 2 Votes )
In a ∆ABC, if a =
Answer :
Note: In any ΔABC we define ‘a’ as length of side opposite to ∠A , ‘b’ as length of side opposite to ∠B and ‘c’ as length of side opposite to ∠C .
Key point to solve the problem:
Area of ΔABC = 
,where θ is the angle between sides BC and AC , a is the length of BC and b is length of AC
We have,
a = 5 , b = 6 and ∠C = 60°
∴ Area of ΔABC = 
= 
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