The circumference of an isosceles triangle is 30 cm. Each equal side of m is twice as large as the sum. Find the length of the base.
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2*L + B = 30 cm
L = 2*B
2*(2*B) + B = 30 cm
4*B + B = 30 cm
5*B =30 cm
B = 30/5 cm = 6 cm
L = 2*B = 2*6 cm = 12 cm
Each equal side is 12 cm. The base is 6 cm.
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