Question 73

The perimeter of an isosceles triangle is 125 cm. If the base is 33 cm, find the length of the equal sides.

Solution

Let length of the equal sides = a

Length of the base = 33 cm

Perimeter of isosceles triangle = 125 cm

$$\Rightarrow$$ a + a + 33 = 125

$$\Rightarrow$$ 2a = 92

$$\Rightarrow$$ a = 46 cm

$$\therefore\ $$Length of equal sides = 46 cm

Hence, the correct answer is Option A

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