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CUET
General Test
Quantitative Reasoning
Geometry
The sum of three sides of an isosceles triangle is 20 cm, and the ratio of an equal side to the base is 3 : 4. The altitude of the triangle is:
$3\sqrt{3}$ cm
$3\sqrt{5}$ cm
$4\sqrt{5}$ cm
$2\sqrt{5}$ cm