Question

an isosceles traingle has perimeter 30 cm and each of the equal side is 12 cm find the third side






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Answer 1

Answer:

Third side will be 6cm.

30-(12+12) = 6

Answer 2

First,let the third side be x.

It is given that the length of the equal sides us 12 cm and it's perimeter is 30 cm.

So According to question,

$30=12+12+x$

$⇒ 30 = 24 + x$

$⇒24 + x = 30$

$⇒ x= 30 - 24$

$⇒ x = 6$

So,the length of the third side is 6 cm.

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