" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
B. d1 : d2 dikali 6 ............
c.
= 3,14 × 6^2 ÷ 2
= 3,14 × 36 ÷ 2
= 3,14 × 18
= 56,52 cm^2
L2 = 1/2 × A × T
= 1/2 × 6 × 7
= 1 × 3 × 7
= 21 cm^2
LG = 56,52 + 21
= 77,52 cm^2
D. L = phi × r^2 ÷ 2
= 22/7 × 7^2 ÷ 2
= 22/7 × 49 ÷ 2
= 22 × 7 ÷ 2
= 11 × 7
= 77 cm^2
5. A. L = phi × r^2
616 = 22/7 × r^2
r^2 = 616 ÷ 22/7
r^2 = 616 × 7/22
r^2 = 28 × 7
r^2 = 196 (diakarkan pangkat 2)
r^2 = 14 cm
B. K = 2 × phi × r
= 2 × 22/7 × 14
= 2 × 22 × 2
= 88 cm