Question

find the semi-perimeter of a triangle
whose Sides are 16 cm , 10 cm and 12cm.

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Answer 1

Answer:

Using the formulas

A=hbb

2

A=√s(s﹣a)(s﹣b)(s﹣c)

s=a+b+c

2

Solving for hb

hb=√﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4/ 2b

=√﹣164+2·(16·10)2+2·(16·12)2﹣104+2·(10·12)2﹣124 /2·10

≈11.98499cm

Step-by-step explanation: