peehatikan gambar..........beserta caran nya

L 1/2 lingkaran = 1/2 phi r^2
= 1/2 . 22/7 . 49
= 77 cm^2

L trapesium = 1/2 ( 14 + 20 ) × 11 - 7
= 1/2 . 34 . 4
= 68 cm^2

Luas arsiran = 77 + 68
= 145 cm^2