A Dialogue of Comfort Against Tribulation

A Dialogue of Comfort Against Tribulation

Matematika a)1.496
b)748
c)440
d)594​

a)1.496
b)748
c)440
d)594​

Jawaban:

B. 748 dm²

Penjelasan dengan langkah-langkah:

jari jari

= 14 dm ÷ 2

= 7 dm

luas permukaan tabung

= 2 × π × r × (r + t)

= 2 × 22/7 × 7 × (7 + 10)

= 2 × 22/7 × 7 × 17

= 748 dm²

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