Q.Diketahui besar sudut AOB = 40°, dan besar sudut BOC = 60°, jika panjang busur AB ° 48 cm, tentuka.... Question from @nxyaptrf

May 2022 2 21 Report

Q.

Diketahui besar sudut AOB = 40°, dan besar sudut BOC = 60°, jika panjang busur AB ° 48 cm, tentukan panjang busur BC!

khadijahamjad12

SOAL 1

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$Rumus :$

S AOB/S BOC = P Busur AB/S BC

___________________________________________ 40°/60° = 48/BC

40°BC = 2.880°

BC = 2.880° ÷ 40°

BC = 72 cm

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nuhaylakhaira

72 cm

Penjelasan dengan langkah-langkah:

Dik : sudut AOB = 40°

sudut BOC = 60°

busur AB = 48

Dit : busur BC ?

Jwb : $\frac{ < aob}{ < boc} = \frac{busur \: ab}{busur \: bc}$

: $\frac{40}{60} = \frac{48}{busur \: bc}$

$busur \: bc \: = \frac{60 \times 48}{40}$

busur BC = 72 cm

jadi, panjang busur BC adalah 72 cm

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