Question

the side of a triangle are 13cm 14cm 15cm then its semiperimeter is​

Answer 1

Answer:

42

Step-by-step explanation:

perimeter of a triangle = sum of all sides

=13+14+15=42

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Answer 2

GIVEN:

The side of a triangle are 13cm, 14cm and 15cm.

TO FIND :

semiperimeter of triangle

FORMULA USED:

semiperimeter of triangle =

$semiperimeter \: of \: triangle = \frac{sum \: of \: all \: sides}{2}$

SOLUTION :

semiperimeter of triangle with sides 13cm, 14cm and 15cm :-

$semiperimeter \: of \: triangle = \frac{13 + 14 + 15}{2}$

$semiperimeter \: of \: triangle =\frac{42}{2}$

$semiperimeter \: of \: triangle = 21cm$

ANSWER :-

21 cm

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