Question

side of a triangle are 45cm,39cm amd 42cm find its semiperimeter of a triangle​

Answer 1

Answer:

semiperimeter of a triangle=38.77 cm

Answer 2

Answer:

Given:-

Sides of a triangle are 45cm, 39cm and 42cm; Find its semiperimeter of a triangle.

To Find:-

The semiperimeter of a triangle.

Note:-

●》For getting the semiperimeter of a triangle = $All \ \ the \ \ three \ \ sides \ \ sum ÷ 2 \ \ or \ \ a + b + c ÷ 2$

Solution:-

All the Three sides or a, b, c are = 45cm, 39cm and 42cm ( respectively )

☆ According to note point~

▪︎$Semiperimeter \ \ of \ \ a \ \ triangle = 45cm + 39cm + 42cm ÷ 2$

☆ After doing additions~

▪︎$Semiperimeter \ \ of \ \ a \ \ triangle = 126cm ÷ 2$

☆ After doing calculations~

▪︎$Semiperimeter \ \ of \ \ a \ \ triangle = 63cm$

Answer:-

Hence, the semiperimeter of a triangle = 63 cm.

:)