☺ Salin dan lengkapilah tabel ukuran suatu lingkaran berikut. No. Jari-Jari Diameter Keliling Luas a 10 cm b 2.464 cm? с 63 cm =
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Penjelasan dengan langkah-langkah:
Ket.
No. = Nomor
R = Jari"
D = Diameter
K = Keliling
L = Luas
- Tabel Ada Di Foto!
B. ) Luas L.
L = πr²
r² = [ 2.464 × 7 ]/22
r² = 17.248/22
r² = √784
r² = 28 Cm ✔
C.) Diameter
D = 2 × r
D = 2 × 28
D = 56 Cm ✔
A.) Keliling
K = πd
K = 22/7 × 56
K = 1.232/7
K = 176 Cm ✔
Penjelasan dengan langkah-langkah:
r = jari²
d = diameter = 2r
K = Keliling = πd
L = Luas = πr²
No r d K L
a. 10 20 62,8 314
b. 28 56 176 2.464
c. 31,5 63 198 3.118,5
b. Luas = 2.464 cm²
Luas = πr²
r² = 2.464 × 7
22
r² = 17.248
22
r² = 784
r = √784
r = 28 cm
d = 2r
d = 2×28
d = 56 cm
K = πd
K = 22 × 56
7
K = 1.232
7
