apa jawabannya nih ?bantu donk

Ini lingkaran kan???
OP = jari-jari = r = 14 cm
PQ = diameter = d = 2r = 2×14 = 28 cm
π = 22/7
Keliling lingkaran = 2πr = 2 × 22/7 × 14 = 2 × 22 × 2 = 88 cm