SOLUTION: Give the measure of the base of an isosceles triangle whose perimeter is 60 cm and one of its equal sides has a length of 21 cm.

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Question 1191113: Give the measure of the base of an isosceles triangle whose perimeter is 60 cm and one of its equal sides has a length of 21 cm.

Answer by ikleyn(52775) About Me  (Show Source):
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The base is   60 - 2*21 = 18 cm.             ANSWER