Question

If the sides of a triangle are 4cm, 14 cm and 18 cm, then find its semi perimeter

Answer 1

Answer:

Given:-

If the sides of triangle are 4cm, 14cm and 18cm. Find its semi perimeter.

To Find:-

The semiperimeter.

Note:-

●》As perimeter of triangle = a + b + c; "Semi" means half so, Semiperimeter of triangle = $\frac{a + b + c}{2}$ ( "a, b, c " are three sides of triangle )

Solution:-

$\huge\red{Three \ \ sides \ \ that \ \ a,b,c = 4cm, 14cm, 18cm}$

☆ According to note first point~

▪︎$Semiperimeter \ \ of \ \ triangle = \frac{a + b + c}{2}$

▪︎$Semiperimeter \ \ of \ \ triangle = \frac{4cm + 14cm + 18cm}{2}$

▪︎$Semiperimeter \ \ of \ \ triangle = \frac{18cm + 18cm}{2}$

▪︎$Semiperimeter \ \ of \ \ triangle = \frac{36cm}{2}$

☆ After dividing~

▪︎$Semiperimeter \ \ of \ \ triangle = 18cm$

$\huge\pink{Semiperimeter \ \ of \ \ triangle = 18cm}$

Answer:-

Hence, the Semiperimeter of triangle = 18cm.

:)