Question

Find the area of triangle , two side of which are 8 cm and 12 cm and the perimeter is 38 cm.​

Answer 1

Answer:

2×58

=116

Step-by-step explanation:

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Answer 2

Area=√s(s﹣a)(s﹣b)(s﹣c)

P=a+b+c

s=a+b+c/2

Solving forA

A= 1/4√﹣P4+4P3a+4P3b﹣4(Pa)2﹣12P2ab 4(Pb)2+8Pa2b+8Pab2

= 1/4·√﹣384+4·383·8+4·383·12﹣4·(38·8)2﹣12·382·8·12﹣4·(38·12)2+8·38·82·12+8·38·8·122

ans≈38.24918cm²

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