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The perimeter of an isosceles triangle is 26 cm while equal sides together measure 20 cm. The third side and each of the equal sides are respectively.

6 cm and 10 cm
8 cm and 9 cm
10 cm and 8 cm
14 cm and 6 cm

Correct Answer: 6 cm and 10 cm

Explanation:

Let the third side be x.
According to the question,
x + 20 = 26
⇒ x = 26 - 20 = 6 cm
∴ Each equal side = 20/2 = 10 cm

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