AREA OF SURFACES - Quiz

1) What is the radius of the circle if the angle of sector is 90 Degree and the area of the circle is 196 cm²?

15.77 cm 15 cm 14.85 cm 14.95 cm

2) What is the area of the sector, whose diameter is 40 mm and angle is 120 Degree?

418.66 mm² 400.50 mm² 415.5 mm² 416.6 mm²

3) What is the length of arc of a sector, whose radius is 15 cm and angle is 40 Degree?

9.75 cm 9.8 cm 10.60 cm 10.4 cm

4) What is the length of arc of a sector whose radius is 3.6 cm and angle is 36 Degree?

2.10 cm 2.26 cm 22.6 cm 21.0 cm

5) What is the area of the circle, whose diameter is 50 cm?

1900 cm² 1950 cm² 1962.5 cm² 1960 cm²