How do you derive the formula for the area of a cyclic quadrilateral using Brahmagupta's formula?
Answer 1
Cory Martinez
Brahmagupta’s formula states that the area (K) of a cyclic quadrilateral with sides a, b, c, and d is given by K = √((s-a)(s-b)(s-c)(s-d)), where s is the semiperimeter, s = (a+b+c+d)/4. This formula is derived using properties of cyclic quadrilaterals and trigonometric identities.
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