Question

No.16 nyari luas permukaan....tlong dbantu...sma no.17

Answer 1

17. L1= 1/2 x 3,14 x 20 x 20
    = 1/2 x 314 x 2 x 2
    = 628
L2= 1/2 x 3,14 x 10 x 10
    = 1/2 x 314 x 1 x 1
    = 157
L1 + L2= 628 + 157
            = 785 A.
16. r= 1,5:2=0,75
       L= 3,14 x 0,75 x 0, 75
         =176,625 A.
maaf klu salah