scarMipe
L yang diarsir = L trapesium - luas 1/2 lingkaran = ((20+14)x14:2) - (1/2 x 22/7x7x7)
=238 cm ^2 + 77 cm ^2 =315 cm ^2
0 votes Thanks 1
rahman195
L daerah yg diarsir = L trapesium - 1/2 L lingkaran. L trapesium =1/2(jmlh sisi sejaja)r × tnggi =1/2 (20+14) x 14 =1/2 34 x 14 =17 x 14 =238 L 1/2 linkrn= 1/2 phi r2 =1/2 22/7 14x14 = 1/2 22x2x14 =1/2 44x14 =158 L daerah yg duarsir = LT - L1/2 ling 238-158 80 m persegi
= ((20+14)x14:2) - (1/2 x 22/7x7x7)
=238 cm ^2 + 77 cm ^2
=315 cm ^2
L trapesium =1/2(jmlh sisi sejaja)r × tnggi =1/2 (20+14) x 14
=1/2 34 x 14
=17 x 14
=238
L 1/2 linkrn= 1/2 phi r2
=1/2 22/7 14x14
= 1/2 22x2x14
=1/2 44x14
=158
L daerah yg duarsir = LT - L1/2 ling
238-158
80 m persegi