" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
L = π x r²
= 3,14 x 10 x 10
= 314 cm²
luas juring
L = 90/360 x L.lingkaran
= 1/4 x 314
= 78,5 cm²
luas segitiga KOL
L = 1/2 x a x t
= 1/2 x 10 x 10
= 5 x 10
= 50 cm²
luas tembereng
L = 78,5 - 50
= 28,5 cm²
luas lingkaran = π x r x r
= 3,14 x 10 x10
= 314 cm2
b.
luas juring = (90/360) x π x r x r
= ( 90/360 ) x 3,14 x 10 x 10
= 1/4 x 314
= 78,5
c.
luas segiitiga = 1/2 x alas x tinggi
= 1/2 x 10 x 10
= 50
d.
luas tembereng = luas juring - luas Δ
= 78,5 - 50
= 28,5