Question

If length of two equal sides of an ISOSCELES triangle is 5m each and its Semi perimeter is 9 m, the length of third side will be​

Answer 1

${\sf\bold{2~sides~are~5m}}$

${\sf\bold{Semi~perimeter~=~9}}$

${\sf\bold{let~3rd~side~be~x}}$

${\sf\bold{We~can~say~}}$

${\sf\bold{ \frac{5 + 5 + x}{2} =9}}$

${\sf\bold{\frac{10+ x}{2}=9 }}$

${\sf\bold{10~+~x~=~18}}$

${\sf\bold{x~=~8}}$

${\sf{\color{maroon}{3rd~side~is~8cm}}}$

SEMI PERIMETER = a + b + c / 2

$\large\pink{\sf\bold{where~a~,~b~,~c~are~sides}}$

Answer 2

Answer:

8 cm

Step-by-step explanation:

The answer is 8 cam of the third.