" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
Keliling = 1/2 lingkaran kecil + 1/2 lingkaran kecil + 1/2 lingkaran besar
= 1/2 . πd + 1/2 . πd + 1/2 . πd
= 1/2 . 22/7 . 14 + 1/2 . 22/7 . 14 + 1/2 . 22/7 . (14+14)
= 7 . 22/7 + 7 . 22/7 + 1/2 . 22/7 . 28
= 22 + 22 + 14 . 22/7
= 44 + 2 . 22
= 44 + 44
= 88 cm
==========
b.
Keliling = 1/4 lingkaran + 1/4 lingkaran + 4(26)
= 1/4 . πd + 1/4 . πd + 104
= 1/4 . 22/7 . (14.2) + 1/4 . 22/7 . (14.2) + 104
= 1/4 . 22/7 . 28 + 1/4 . 22/7 . 28 + 104
= 7 . 22/7 + 7 . 22/7 + 104
= 22 + 22 + 104
= 148 cm