Question

Find the total area of all the figures

Answer 1

area of Δ ABE=√[9(9-8)(9-5)(9-5)]             [using heron's formula]

=12 cm²                                        [s=a+b+c/2]  area=[s(s-a)(s-b)(s-c)]

area of trapezium BEDC =(8+5)×1/2×8      

=52 cm²

so,total area =12 cm²+ 52 cm²

=64 cm²

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