" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
cari 1/2 lingkaran : 1/2 × π × r × r
: 1/2 ×3,14×10×10
: 314:2
:157cm2
cari persegi
* S×S
10×10×1cm
100cm2
L Gabungan : 157cm2 - 100cm2
: 57cm2
no.4
cari 1/2 lingkaran : 1/2 ×π×r×r
: 1/2 ×3,14 × 10×10 × 1 cm
: 157cm2
cari lingkaran: π×r×r
: 3,14×10×10 × 1 cm
: 314 cm2
L Gabungan : 314cm2 - 157 cm2
: 157cm2
Semoga membantu :)
p=20cm l=10cm
Luas □=p×l
=20×10
=200
Luas ○=1/2×3,14×10×10
=3,14×5×10
=3,14×50
=157
Luas seluruhnya=200-157
=43cm
K=20+(1/2×3,14×20)
=20+(3,14×10)
=20+31,4
= 51,4cm
4. Luas =(3,14×r×r)×1/2
=(3,14×10×10)×1/2
= 314×1/2
=157 cm
K =(4×10)+(1/2×3,14×d)
= 40 + 31,4
=71,4 cm