Question

please solve this quickly

Answer 1

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here's your answer looking for

AREA OF 1ST FIGURE ABCDE =

$( \frac{1}{2} \times 4 \times 2 ) + (4 \times 4) \\ = 4 + 16 \\ = 20 {cm}^{2}$


AREA OF 2ND FIGURE ABCDEF =
$( \frac{1}{2} \times (7 + 18) \times 8) + (18 \times 18) \\ = (\frac{1}{2} \times 25 \times 8) + 324 \\ = 100 + 324 \\ = 424 {cm}^{2}$


AREA OF 3RD FIGURE ABCDEF =

$( \frac{1}{2} \times (6 + 15) \times 8) + (20 \times 15) \\ = 84 + 300 \\ = 384 {cm}^{2}$
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