I want to kanpur the answer as I am getting wrong
Attachments:
Answers
Answered by
0
Step-by-step explanation:
8. (a+b)²=7²
=a²+2ab+b²=49
=a²+20+b²=49
=a²+b²=29
9. sides are 34 cm,20cm,42cm
s=a+b+c/2=34+20+42/2=96/2=48
Area=[s(s-a)(s-b)(s-c)]^1/2
=48×14×28×6^1/2
=112896^1/2
=106.235 cm² (approx)
Similar questions