alleryStart learning →An isosceles triangle has equal sides of (x + 3) cm and base 2x cm. Its perimeter is 34 cm. What is the base?
A10 cm
B7 cm
C14 cm
D17 cm
Answer & Solution
Correct answer: C. 14 cm
2(x + 3) + 2x = 34 gives 4x = 28, so x = 7 and the base is 14 cm.
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