Baseitsof anareaisosceles triangle is 30 cm find

1.	Baseitsof anareaisosceles triangle is 30 cm find
Answer» 1/23030 = 900/2 = 450 , there is no option so the base is Hypotenuse, Now, Let the side = x, => x²+x² = 30²=>2x² = 30² =>x² = 1530=> x² = 53352=> x² = 5²3²2=> x = 53√2 = 15√2, now area = 1/215√215√2=> 1/2 225 * 2 => 225 sq cm, Therefore the answer is , 225 sq cm,

Answer»

1/2*30*30 = 900/2 = 450 , there is no option so the base is Hypotenuse,

Now,

Let the side = x,

=> x²+x² = 30²=>2x² = 30² =>x² = 15*30=> x² = 5*3*3*5*2=> x² = 5²*3²*2=> x = 5*3*√2 = 15√2,

now area = 1/2*15√2*15√2=> 1/2 * 225 * 2

=> 225 sq cm,

Therefore the answer is ,

225 sq cm,

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