Book Back, Exercise, Example Numerical Question with Answers, Solution : 4th Maths : Term 1 Unit 1 : Geometry : Exercise 1.1c (center, radius and diameter of a circle)

__Exercise 1.1c__

**A. ****Fill
in the blanks.**

1. All the radii of a circle are ** Equal**.

2. The ** Diameter** is the longest chord of a circle.

3. A line segment joining any point
on the circle to its center is called a ** Radius** of the circle.

4. A line segment with its end points
on the circle is called a ** Chord**.

5. Twice the radius is ** Diameter**.

**B.**** Find the diameter of the circle.**

**1. ****Radius
= 10cm **

Radius = 10 cm

Diameter = 2 x radius

= 2 x 10 = 20 cm

Diameter = 20 cm

**2. ****Radius
= 8cm **

Radius = 8 cm

Diameter = 2 x radius

= 2 x 8 = 16 cm

Diameter = 16 cm

**3. ****Radius
= 6cm**

Radius = 6 cm

Diameter = 2 x radius

= 2 x 6 = 12 cm

Diameter = 12 cm

**C. ****Find
the radius of the circle.**

**1. ****Diameter
= 24 cm **

Radius = diameter / 2

= 24 / 2 = 12 cm

Radius = 12 cm

**2. ****Diameter
= 30 cm **

Radius = diameter / 2

= 30 / 2 = 15 cm

Radius = 15 cm

**3. ****Diameter
= 76 cm**

Radius = diameter / 2

= 76 / 2 = 38 cm

Radius = 38 cm

Tags : Geometry | Term 1 Chapter 1 | 4th Maths , 4th Maths : Term 1 Unit 1 : Geometry

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4th Maths : Term 1 Unit 1 : Geometry : Exercise 1.1c (center, radius and diameter of a circle) | Geometry | Term 1 Chapter 1 | 4th Maths

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