Find the area of a cyclic quadrilateral ABCD in which AB = 10cm , BC = 8cm , CD= 5cm and DA = 7cm.
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Step-by-step explanation:
Area of cyclic quadrilateral is
s=a+b+c+d÷2
√(s-a)(s-b)(s-c)(s-d)
s=10+8+5+7÷2
s= 15
√(15-10)(15-8)(15-5)(15-7)
√5×7×10×8
√5×7×5×2×2×2×2
5×2×2√7
20√7 cm.sq
hope it's helps..... you
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