Tolong jawab plsssss!!!!!!​

Jawaban:

1.22/7 × 42 = 22 × 6

= 132 cm²

2.3,14 × 16

= 50,24 cm²

3.πr² atau πd

note : π = 22/7 atau 3, 14

r = jari-jari

d = diameter

4.22/7 × 14 × 14 = 22×2×14

=616 cm ²

5.3,14 × 5 × 5

=78,5 cm²