Question : The area of a sector of a circle of radius 28 cm is 112 cm². Find the length of the corresponding arc of the sector.

Option 1: 4 cm

Option 2: 8 cm

Option 3: 6 cm

Option 4: 5 cm

Question : Find the area of the sector of a circle with a radius of 4 cm containing an angle of 30°.

Option 1: 7.186 cm²

Option 2: 6.186 cm²

Option 3: 4.186 cm²

Option 4: 5.186 cm²

Question : The area of the sector of a circle of radius 12 cm is $32 \pi \;\mathrm{cm}^2$. Find the length of the corresponding arc of the sector.

Option 1: $\frac{16}{3} \pi$ cm

Option 2: $\frac{13}{3} \pi$ cm

Option 3: $\frac{10}{3} \pi$ cm

Option 4: $\frac{8}{3} \pi$ cm

Question : An arc on a circle, whose length is 19.25 cm, subtends an 18° angle at the centre. What is the area of the circle? [Use $\pi = \frac{22}{7}$]

Option 1: 11796.625 cm²

Option 2: 11786.625 cm²

Option 3: 11780.625 cm²

Option 4: 11790.625 cm²

Question : An arc of length 23.1 cm subtends an 18° angle at the centre. What is the area of the circle?
$\mathrm{[Use ~\pi=\frac{22}{7} ]}$

Option 1: 16978.50 cm²

Option 2: 16988.50 cm²

Option 3: 16878.50 cm²

Option 4: 16798.50 cm²