Question

Tolong di jawab ya kak, di jawab ya​

Answer 1

Jawaban no 1

Lp = 2 x π x r (t + r)

Lp = 2 x 22/7 x 7 (15+7)

Lp = 44 (22)

Lp = 968 cm^2 (A)

Jawaban no 2

Lp = 2 x π x r (t + r)

Lp = 2 x 22/7 x 21 (50+21)

Lp = 132 (71)

Lp = 9372 cm^2 (D)

Jawaban no 3

Lp = 2 x π x r (t + r)

Lp = 2 x 3,14 x 15 (21+15)

Lp = 94,2 (36)

Lp = 3391,2

Jawaban no 4

Lp = 2 x π x r (t + r)

Lp = 2 x 22/7 x 14 (60+14)

Lp = 88 (74)

Lp = 6512

Semoga membantu ya

Answer 2

jawab :  

NOTE :  π itu bisa 22/ 7 atau 3,14

1. L. permukaan tabung = 2x πr x ( r + t )

 = 2x 22/7 x 7 x ( 7 + 15) = 2 x 22 x 22 = 968 (A)

2.  L. permukaan tabung = 2x πr x ( r + t )

  = 2x 22/7 x 21 x ( 21 + 50 ) = 2 x 66 x 71 =  9372 (D)

3. L. permukaan tabung = 2x πr x ( r + t )

  = 2x 3,14 x 15 x ( 15 + 12 ) = 2 x 3,14 x 15 x 27 = 2543,4

4.  L. permukaan tabung = 2x πr x ( r + t )

  = 2x 22/7 x 14 x ( 14 + 60 ) = 2 x 44 x 64  = 5632

maaf klo salah ya :D