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4 × 7 = 28
22/7 × 14 × 1/4 = 11
= 28 - 11
= 17
luas :
7 × 7 = 49
22/7 × 7 × 7 × 1/4 = 38.5
= 49 - 38.5
= 10.5
maaf kalau salah:)
luas persegi = 7 × 7 = 49
luas 1/4 lingk = 1/4 × 22/7 × 7 × 7 = 1/4 × 154 = 38,5
maka luas daerah arsiran = 49 - 38,5 = 10,5
semoga membantu ☺