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Area of triangle formed by the tangent at the point (a,b) to the circle x2+y2=r2 and the coordinate axis is?

sid , 8 Years ago
Grade 11
anser 1 Answers
Nishant Vora

Last Activity: 8 Years ago

Eqn of tangent will be given by T=0
ax+by=r2

hence the x intercept is r2/a
and y intercept is r2/b

so area of triangle is ½ r2 /a * r2/b = r^4 / 2ab

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