plz solve this question. if radius is 18 cm and angle at the centre of a circle is 120 degree then area of sector approximately
Answers
Answered by
2
120/360*π*18*18
π*1/3*18*18
π*6*18
π*108
π*1/3*18*18
π*6*18
π*108
seemasssingh4p893y4:
your answer is wrong
what is wrong
72π
answer is 339.4cm^2
72π=339.4
72π=226.28
6*18 is 108 not 72
108π
Answered by
24
Hii There!!!
We know that area of a sector is given by
=> θ / 360° × π r^2
=> 120 / 360° × 22/7 × 18 × 18
=> 1 / 3 × 22 / 7 × 18 × 18
=> 7128 / 21
=> 339.4 cm^2
Hence, area of sector = 339.4 cm^2
____________________
Hope it helps
◆●●◆●●◆¢'$◆●●◆●●◆
We know that area of a sector is given by
=> θ / 360° × π r^2
=> 120 / 360° × 22/7 × 18 × 18
=> 1 / 3 × 22 / 7 × 18 × 18
=> 7128 / 21
=> 339.4 cm^2
Hence, area of sector = 339.4 cm^2
____________________
Hope it helps
◆●●◆●●◆¢'$◆●●◆●●◆
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