Question

The sides of the triangle are 41cm, 28cm and 15cm . What is the semi-perimeter ( s ) of the triangle?

Answer 1

Answer:

42 cm

Step-by-step explanation:

Semiperimeter=Perimeter/2

Perimeter = Sum of all sides

                  =41+28+15

                 = 84 cm

Semiperimeter = 84/2

                         = 42 cm

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Answer 2

Answer:

s= [s1+s2+s3] /2

[41+28+15]/2

s=42