The perimeter of an isosceles triangle is equal to 14 cm and the lateral side is

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The perimeter of an isosceles triangle is equal to 14 cm and the lateral side is to the base in the ratio 5 : 4. The area of the triangle is :

Options:

A . 21 cm2

B . $$0.5\sqrt {21} $$ cm2

C . $$1.5\sqrt {21} $$ cm2

D . $$2\sqrt {21} $$ cm2

Answer: Option D

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