Question

Find the length of each of the equal sides of the isosceles triangle if the perimeter and unequal side are perimeter=30cm unequal side =8cm

Answer 1

P=a+b+c
30=a+a+c(a=b)
30=2a+8
30-8=2a
22=2a
a=11

Answer 2

Heya,
Here is your answer

let the length of the equal sides = x
length of unequal side = 8cm

perimeter of the triangle = 30cm
=> x + x + unequal side = 30
=> x + x + 8 = 30
=> 2x + 8 = 30
=> 2x = 30 - 8
=> x = 22/2
= 11cm

So length of each equal side is 11cm.



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