Question

tapi lah tabel berikut dengan bilangan yang tepat...​

Answer 1

Penjelasan dengan langkah-langkah:

K = 2 (p + l)

___________

Nomor 1 =

K = 2 (15 + 9)

K = 2 x 24 = 48 cm

Nomor 2 =

K = 2 (p + l)

88 = 2 (p + 16)

88 = 2p + 32

2p = 88 - 32

2p = 56

p = 56 / 2

p = 28 cm

Nomor 3 =

K = 2p + 2l

132 = (2 x 45) + 2 l

132 = 90 + 2 l

2 l = 132 - 90

2 l = 42  

l = 42/2

l = 21 cm

Nomor 4 =

k = 2 ( 34 + 22)

  = 2 x 56  = 112 cm

Nomor 5 =

K = 2 (p + l)

170 = 2 (p + 77)

170 : 2p = 85

p = 85 - 77

p = 8 cm

Maaf Kalo Salah

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Answer 2

Penjelasan dengan langkah-langkah:

No.1

p = 15 cm

l = 9 cm

k = 2 × ( p + l )

= 2 × (15 + 9)

= 2 × 24

= 48 cm

No. 2

k = 88 cm

l = 16 cm

p = k : 2 - l

= 88 : 2 - 16

= 44 - 16

= 28 cm

No. 3

k = 132 cm

p = 45 cm

l = k : 2 - p

= 132 : 2 - 45

= 66 - 45

= 21

No. 4

p = 34

l = 22

k = 2 × (p + l)

= 2 × (34 + 22)

= 2 × 56

= 112 cm

No.5

k= 170 cm

l = 77 cm

p = k - (2 × l)

= 170 - (2 × 77) : 2

= 170 - 154 : 2

= 16 : 2

= 8

pembuktian (GK percaya)

k = 2 × (8 + 77)

= 2 × 85

= 170 cm