1.

Baseitsof anareaisosceles triangle is 30 om "find

Answer»

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 ,

225cm²


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