Question

Q.

Luas Tabung Dengan Diameter 266 cm Dan Tinggi 56 cn Adalah....

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Answer 1

L Tabung

L = 2 × π × r × ( r + t )

L = 2 × ²²/7 × ( 266 cm ÷ 2 ) × (( 266 cm ÷ 2 ) + 56 cm )

L = 2 × ²²/7 × 133 cm × ( 133 cm + 56 cm )

L = 2 × ²²/7 × 133 cm × 189 cm

L = 2 × 22 × 19 cm × 189 cm

L = 2 × 418 cm × 189 cm

L = 2 × 79.002 cm

L = 158.004 cm²

Answer 2

Penyelesaian

L tabung = 2 x π x r x ( r + t )

L tabung = 2 x 22/7 x (266 ÷ 2 ) x((266 ÷ 2 ) + 56

L tabung = 2 x 22/7 x 133 x ( 133 + 56 )

L tabung = 2 x 22/7 x 133 x ( 189 )

L tabung = ( 2 x 22 x 133 x 189 ) ÷ 7

L tabung = ( 44 x 133 x 189 ) ÷ 7

L tabung = 1.106.028 ÷ 7

L tabung = 158.004 cm³