Question

Find the semi perimeter of a triangles whose sides are 12cm 14cm and 10cm
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Answer 1

Answer:

semi perimeter of a triangle is side + side + side/ 2

here

12 + 14 + 10/ 2

36/2

18

Answer 2

Answer:

here a = 12 cm

b = 14 cm

c = 10 cm

$semiperimeter \: = \frac{a + b + c}{2} = \frac{12 + 14 + 10}{2} = \frac{36}{2} = 18 \: cm$