Question

help please

Answer 1

\[A(ABCDE) = A(\Delta AEB) + A(\Delta BED)+ A(\Delta CBD)\]
\[A(ABCDE) = \frac {1}{2} \times 20 \times 4 + \frac {1}{2} \times 6 \times 17+ \frac {1}{2} \times 20 \times 4\]
\[A(ABCDE) = 10 \times 4 +3 \times 17+ 10 \times 4 =40+51+40 = 141 sq -units\]

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Answer 2

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