Question

Tolong jawab yang nomor 10 .Pake caranya!No asal!

Answer 1

Verified answer

Keliling setengah lingkaran
D = 14 cm
r = D/2 = 14 cm / 2 = 7 cm

K = 1/2 x 2 x π x r
K = π x r
K = 22/7 x 7 cm
K = 22 cm

Keliling Persegi panjang
Panjang = 26 cm
Lebar = 9 cm

Keliling = 2(P + L) - Diameter Lingkaran
             = 2(26 cm + 9 cm) - 14 cm
             = 2(35 cm) - 14 cm
             = 70 cm - 14 cm
             = 56 cm

Keliling Seluruhnya
K = 22 cm + 56 cm
K = 78 cm

Jawaban D