Email us to get an instant 20% discount on highly effective K-12 Math & English kwizNET Programs!

#### Online Quiz (WorksheetABCD)

Questions Per Quiz = 2 4 6 8 10

### Grade 7 - Mathematics9.22 The Area of a Sector - II

 Example: The length of an arc of a sector whose radius is 8 cm, is 10 cm. Find its area. Solution: Given that, l = 10 cm, and r = 8 cm. Formula A = lr/2 Therefore, A = (10 * 8) / 2 A = 80 / 2 A = 40 sq cm. Directions: Read the above example carefully and answer the following questions. Also make 10 examples of your own.
 Q 1: A sector has radius is 15 cm. Find the length of an arc of the sector if its area is given by 1125 sq cm.125 cm150 cm121 cm112 cm Q 2: The length of an arc of a sector is 24.5 cm. Find the radius if the area of the sector is given by 128.63.12.5 cm18.5 cm13.5 cm10.5 cm Q 3: The length of an arc of a sector whose radius is 28 cm, is 132 cm. Find its area.1263 sq cm1346 sq cm1849 sq cm1848 sq cm Q 4: The length of an arc of a sector whose radius is 7 cm, is 16.8 cm. Find its area.38.2 sq cm98.6 sq cm48.8 sq cm58.8 sq cm 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