tolong ya nomor 3 sampai 10

1. L=1/4
=π×r2
=1/4×3, 14×46×46
=1661, 06

2.L=1/4
=π×r2
=1/4×3, 14×55×55
=2374, 625

3. L=1/4
=π×r2
=1/4×3, 14×80×80
=5024

4. L=1/4
=π×r2
=1/4×3, 14×30×30
706, 5

5. L=1/4
=π×r2
=1/4×3, 14×75×75
=4415, 625

6. L=1/4
=π×r2
=1/4×3, 14×60×60
=2826

7. L=1/4
=π×r2
=1/4×3, 14×92×92
=6644, 24

8. L=1/4
=π×r2
=1/4×3.14×100×100
=7850