the radius of circle is 2.12metre . its area according to the rule of significant figures in the measurement
Answers
Answer:
The required area of the circle would be 4.4944π.
If the value of pi(π) is taken as 3.14 the exact area of the circle would be 14.1 m².
Explanation:
We have been given that radius of circle 2.12 m.We have to find the area of circle according to the rule of significant figures.
- Radius of Circle = 2.12 m
The formula for area of a circle is given by
= pi(π)*radius (r)²
In this given question, the radius (r) is given as 2.12 m. Therefore, the area of circle would can be calculated as follows: = π*r² units
Area of Circle = πr² units
Area of Circle = π(2.12)² m²
Area of Circle = 4.4944π m²
If the value of π is taken as 3.14 the exact area of the circle would be:
= 4.4944 * 3.14 m²
= 14.11 m²
If we find the area of circle in the form of Significant figures, the exact area of the circle would be:
= 14.1 m²
Therefore, The required area of the circle is 14.1 m².
Answer:
The area of the circle is 14.11 m². The area of the circle is . Hence, The area of the circle is 14.11 m².