" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
4)GAMBAR 1
Keliling persegi panjang
= 2 × ( p + l )
= 2 × ( 28 + 14 )
= 2 × 42
= 84 cm
Keliling lingkaran
2 Π r
2 × 22/7 × 7
2 × 22
44 cm
Keliling daerah yang diarsir
84 cm - 44 cm = 40 cm
GAMBAR 2
Keliling 1/4 lingkaran
= 1/4 × 2 Π r
= 1/4 × 2 × 3,14 × 10
= 1/2 × 31,4
= 15,7 cm
Semoga membantu