Introduction
A circle is a shape wherein all points have the same distance from the center. Few realworld examples include a wheel, dining plate, coin etc.
Important Terms Related to Circle
Diameter
The diameter can be termed as a line which is drawn across a circle passing through the center.
Radius
The distance from the middle or center of a circle towards any point on it is a radius. Interestingly, when you place two radii backtoback, the resultant would hold the same length as one diameter. Therefore, we can call one diameter twice as long as the concerned radius.
Circle Area
In a circle, the area can be stated as π times the square of the radius. It is written as: A = π r× r. Taking into consideration the Diameter: A = (π/4) × D×D
Chord
A line segment that joins two points present on a curve is called as the chord. In geometry, the usefulness of a chord is focused on describing a line segment connecting two endpoints which rest on a circle.
Task
 Find the area and the circumference of a circle whose radius is 10 cm. (Take the value of π = 3.14)

Area and Circumference of a Circle.

Find the area of a circle whose circumference is 31.4 cm.

Find the area of a circle whose radius is 7 cm
 Find the circumference of a circle whose radius is 9 cm.
 The area of a circle is 176 cm2. Find its radius
Process
Evaluation

Find the circumference of the circles with the following radius: (Take π = 22/7)
(a) 14 cm (b) 28 mm (c) 21 cm

Find the area of the following circles, given that: (Take π = 22/7)
(a) radius = 14 mm (b) diameter = 49 m (c) radius = 5 cm
Conclusion
Make sure that you understand everything that is being taught.
The due date for the task is 15,SEPTEMBER 2021 23:59.
Good Luck