The base of an isoceles triangle is y cm. The length of one leg is 6 less the base. The perimeter of the triangle is 66.
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Step-by-step explanation:
Base is y cm and two equal sides are y-6 as given
Therefore,(y-6)+(y-6)+y=66
3y-12=66
3y=66+12
3y=78
y=78/3
i.e26 cm
So other two equal sides will be 20
Hope it helps u mate! :)
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