perimeter =55 cm, unequal side = 15 cm.
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20cm
Step-by-step explanation:
Length of unequal side = 15cm
Perimeter of triangle = 55cm
The length of each equal side = X
= X + X + 15 = 55
= 2x = 55 - 15
= 2x = 40
= X = 20 cm
The length of each equal side is 20cm
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