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Isosceles triangle

I have a problem with an isosceles triangle ABC , a=b , angle(A) = 15 degrees , the perimeter of the triangle = 25 CM , I need to find the area of the circumcircle of the triangle ABC.

Note by Joe Ayman
3 years, 10 months ago

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R=25/(rt6-rt2+2), rtx= square root of x. then apply area= (pi)R^2. Shubhabrota Chakraborty · 3 years, 10 months ago

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