Learn mensuration arc length, sector area and radian measure MCQs, grade 8 math test 3, arc length and area of sector multiple choice questions and answers. Arc length and area of sector revision test has math worksheets, answer key with choices as z°⁄360° x area of semicircle, z°⁄360° x area of major arc, z°⁄360° x area of circle and z°⁄360° x circumference of multiple choice questions (MCQ) with arc length and area of sector quiz as if angle of sector is z° then formula used to calculate is for competitive exam prep, viva interview questions. Free math study guide to practice arc length and area of sector quiz to attempt multiple choice questions based test.

MCQ. If angle of sector is z° then formula used to calculate is

1. z°⁄360° x area of major arc
2. z°⁄360° x area of semicircle
3. z°⁄360° x area of circle
4. z°⁄360° x circumference

D

MCQ. If radius is 21 cm and angle at center of circle is 140° then length of arc is

1. 42.23 cm
2. 73.24 cm
3. 51.31 cm
4. 62.42 cm

C

MCQ. Considering radian, value of cos 2.3π is

1. 1.832
2. 0.587
3. 2.587
4. 1.684

B

MCQ. Formula used to measure area of circle is

1. 4πr²
2. πr²
3. 2πr²
4. πr² + 2r

B