A circular disc of radius 6 cm is divided into three sectors with central angles 90- 120- and 150- The ratio of the areas of the three sectors isA- 2- 3- 4B- 1- 5- 6C- 3- 4- 5D- 4- 5- 6

The correct option is C 3: 4: 5 ...

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Mathematics

Length of Arc of a Sector

A circular di...

Question

A circular disc of radius 6 cm is divided into three sectors with central angles 90^o, 120^oand 150^o. The ratio of the areas of the three sectors is

2: 3: 4

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3: 4: 5

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1: 5: 6

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4: 5: 6

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Solution

The correct option is B
3: 4: 5

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A circular disc of radius 6 cm is divided into three sectors with central angles 120^o, 150^o and 90^o. The ratio of the arc of the three sectors is

A circular disc of radius 6 cm is divided into three sectors with central angles $90^{\circ}, 120^{\circ} a n d 150^{\circ}$ . What part of the whole circle is the sector with central angle $150^{\circ}$ ? Also, calculate the ratio of the areas of the three sectors.