" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
K = 1320 m : 1000
K = 1,32 m
K = 132 cm
K = 2 × π × r
132 = 2 × 22/7 × r
66 = 22/7 × r
r = 66 × 7/22
r = 3 × 7
r = 21
Jawab = A. 21
12) Busur = α/360 × K lingkaran
= 45/360 × 2 × π × d
= 1/8 × 2 × 22/7 × 28
= 1/4 × 22 × 4
= 22 cm
Jawab = B. 22
13) K = 2 × π × r
88 = 2 × 22/7 × r
44 = 22/7 × r
r = 44 × 7/22
r = 2 × 7
r = 14 cm
L = π × r²
= 22/7 × 14²
= 22/7 × 196
= 22 × 28
= 616 m²
Jawab = A. 616
Kel=2.phi.r
88=2.22/7.r
r=616/44
r=14
L=phi.r²
22/7.14.14
22.2.14
616 cm