Kak tolong ya no 3, 4,dan 5. Gampang2 kok oh iya kalo bisa pake cara yaa

3) L=πr²
=22/7•14²
=2.156 cm²
jadi, piza yg diperoleh tiap anak=2.156÷28
=77 cm²

4) L1=πr²
=3,14•5•5
=3,14•25
=78,5 cm²
L2=πr²
=22/7•7•7
=154 cm²
Ljln=L1-L2
=154-78,5
=75,5 cm²

5) K1=1/2•2πr
=22/7•7
=22m
K2=1/4•2πr
=1/2•22/7•14
=22m
Klintasan=28+3(14)+K1+K2
=28+42+22+22
=114m

Maaf ya kalau salah