tolong ya kakak yang cantik dan ganteng
-) poin nya lumayan bnyk
-) dikasih jawaban terbaik
-)dikasih love
-) ku follow
-) ngasal report
-) poin nya lumayan bnyk
-) dikasih jawaban terbaik
-)dikasih love
-) ku follow
-) ngasal report
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1. Hitunglah luas lingkaran berikut!
a. L = πr²
= 22/7 × 7²
= 22/7 × 49
= 22 × 7
= 154cm²
b. L = πr²
= 3,14 × 20²
= 3,14 × 4
= 1.256cm²
c. L = πr²
= 22/7 × 35²
= 22/7 × 1.225
= 22 × 175
= 3.850cm²
2. Tentukan luas lingkaran yang memiliki ukuran berikut!
a. L = πr²
= 22/7 × 14 × 14
= 616cm²
b. L = πr²
= 3,14 × 20 × 20
= 1.256cm²
c. L = πr²
= 22/7 × 35 × 35
= 3.850cm²
d. L = πr²
d = 14
r = 14 : 2 = 7cm
L = 22/7 × 7 × 7
= 154cm²
e. L = πr²
d = 20
r = 20 : 2 = 10cm
L = 22/7 × 10 × 10
= 314cm²
f. L = πr²
d = 42
r = 42 : 2 = 21cm
L = 22/7 × 21 × 21
= 1.386cm²
Maaf hanya segitu