1 Answer

Scottingham · Answer 1 · 2021-07-01T01:29:15+0000

Answer:

357_²

Explanation:

find the area of the cut out triangle

20 * 21 = 240

240/2 = 210

find the over all area

21 * 27 = 567

subtract the missing piece

567 - 210 = 357

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