Question

MCQ. Choose the correct answer alternative:

1. Circumference=__________
(when diameter is given)
2. Circumference=_________
[when radius is
given
3. Radius=___________
4. Diameter=________
5. An angle whose vertex is the centre of
the circle is called a______
angle
6. The measure of a semicirclar arc =_______
7. The measure of a maior arc=_________
8 Perimeter of
a rectangle=________​

Answer 1

Step-by-step explanation:

1. πd

2. 2πr

3. d/2= diameter divided by 2

4. d = 2r = 2 times radius

5. CENTRAL angle

6. 180°

7. more than 180°

8. 2(l + b)

Answer 2

1)Circumference =2πr

(when diameter is given)

2)The formula for the circumference, if the circle's radius is given, is: 2 ⨉ radius ⨉ π.

therefore,

Circumference= 2 ⨉ radius ⨉ π.

[when radius is

given]

3)radius=2/d

4)Diameter =2x4

5)an angle whose vertex is the center of the circle is called a CENTRAL angle.

6) The measure of a semicirclar arc =180°

7)The measure of a maior arc= more than 180°

8) Perimeter of a rectangle=2x(l+b).

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