tolong dibantu ya kakkkkkkkkkkkkkk hehe

2.kell=πd=3.14x5=15.7cm
3.Luas= πr²=22/7 x 28 x28=2464cm²
4.Luas drh yg drsr = luas pp - luas o=(10x7) - (22/7 x 3.5 x 3.5)=70-38.5=31.5cm²
5.kell o=25 x 360/60 =150
   bsr 45 = 45/360 x 150 =18.75cm