kwizNET Subscribers, please login to turn off the Ads!
Email us to get an instant 20% discount on highly effective K-12 Math & English kwizNET Programs!

Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Geometry
4.24 Length of the Sector

Example:
The radius of a circle is 28 cm, an arc AB subtends an angle of 75 at the centre O. Find the length of the arc AB.

Solution:
Given that,
r = 28 cm and x = AOB = 75.
The length of arc AB = x/360 * 2pr
= 75/360 * 2 * 22/7 * 28
= 13200/360
= 110/3
= 36 2/3 cm.


Directions: Read the above example carefully and answer the following questions. Illustrate the above example by drawing 10 different circles.
Q 1: The radius of a circle is 8.4 cm, an arc AB subtends an angle of 135 at the centre O. Find the length of the arc AB.
29.8 cm
19.8 cm
12.8 cm
18.8 cm

Q 2: The radius of a circle is 14 cm, an arc AB subtends an angle of 72 at the centre O. Find the length of the arc AB.
17.6 cm
16.6 cm
18.6 cm
16.2 cm

Q 3: The radius of a circle is 'x' cm, an arc AB subtends an angle of 240 at the centre O. Find 'x' if the length AB is given by 29.32 cm .
2 cm
6 cm
7 cm
8 cm

Q 4: The radius of a circle is 28 cm, an arc AB subtends an angle at the centre O. Find the angle if the length of the arc AB is given by 70.4 cm.
123
75
144
60

Question 5: This question is available to subscribers only!

Question 6: This question is available to subscribers only!


Subscription to kwizNET Learning System offers the following benefits:

  • Unrestricted access to grade appropriate lessons, quizzes, & printable worksheets
  • Instant scoring of online quizzes
  • Progress tracking and award certificates to keep your student motivated
  • Unlimited practice with auto-generated 'WIZ MATH' quizzes
  • Child-friendly website with no advertisements
  • Choice of Math, English, Science, & Social Studies Curriculums
  • Excellent value for K-12 and ACT, SAT, & TOEFL Test Preparation
  • Get discount offers by sending an email to discounts@kwiznet.com

Quiz Timer