Lesson Example Discussion Quiz: Class Homework |
Quiz At Home |
Title: Circles |
Grade: 8-a Lesson: S2-L6 |
Explanation: Hello students, its time to revise the topic discussed earlier in the class. Solve the five problems given and fill the answers in the quiz sheet provided and get your score. |
Quiz: at Home
| Problem Id | Question | Description | Options |
|---|---|---|---|
1 |
A circle with radius 20 cm has a segment with a central angle of 90°. What is the area of the segment? |
|
A) 100π-200 B) 200π-200 C) 250π-200 D) 300π-200 |
2 |
A circular shaped gymnasium ring of radius 28cm is divided into 4 equal arcs shaded with different colors. Find the lenght of the each of the arcs. |
|
A) 53cm B) 43cm C) 66cm D) 44cm |
3 |
Find the perimeter of a sector with radius 42cm and central angle 45°. |
|
A) 66cm B) 33cm C) 54cm D) 48cm |
4 |
The radius of a circle is 16cm and the lenght of one of it’s chords is 20cm. Find the distance of the chord from the centre. |
|
A) 15cm B) 14.28cm C) 12.48cm D) 12.12cm |
5 |
In figure, O is the centre of the circle. If ∠APB = 60°, find ∠AOB and ∠OAB. |
|
A) 40° and 20° B) 20° and 40° C) 10° and 50° D) 30° and 30° |
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