Question

Yg nomer 1 , 3 , 5 , 7 , 9




tolong di jawab ya makasih

Answer 1

7. 1. Lp = 4 × 3,14 × 5 × 5 = 3,14 × 100 = 314 cm2
3. 803,84 = 4 × 3,14 × rpangkat2
r2 = 803,84 ÷ (4×3,14)
r2 = 803,84 ÷ 12,56
r2 = 803,84 × 100 ÷1256
r2 = 64
r = akar kuadrat 64
r = 8 cm
5. Lp = ( 2 × 3,14 × 4 × 4 ) + ( 3,14 × 4 × ( 4 +( 2 × 18 )
= 100,48 + ( 12,56 × 144)
= 100,48 + 1808,64
= 1909,12 cm2
7. v = 4/3 × 3,14 × 3 × 3 × 3
=4/3 × 3,14 × 27
=113,04 dm3