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Verified answer
I. Kel segiempatKel segiempat = 4 x sisi = 4 x 7 = 28
II. Kel seperempat lingkaran
Kel 1/4 lingkaran = 2.phi.r = 2.22/7.7 = 44
Karena ada 2 1/4 ling, maka dikali 2, 44 x 2 = 88
Jadi, kel bangun di atas adalah kel segiempat + kel 2x1/4 ling = 28 + 88 = 116
Bab Bangun Datar
Keliling 1/2 lingkaran
= 2πr x 1/2
= πr
= 22/7 x 7
= 22
Keliling persegi
= 4s
= 4(7)
= 28
Keliling total
= 22 + 28
= 50 cm