-Answered by Master Mind On 19 February 2020:04:27:15 PM
Question 1. Asked on :19 February 2020:11:24:57 AM
If a,b and c are the sides of a right angled triangle where c is the hypotenuse ,then prove that the radius r or the circle which touches the sides of the triangle is given by
r = a + b - c2
-Added by Master Mind Mathematics » Circle
Answer:
-Answered by Master Mind On 19 February 2020:04:27:15 PM
Question 2. Asked on :30 January 2019:02:19:19 PM
Why is the area of circle is πr2?
-Added by Himanshi Verma Mathematics » Circle
Answer:
The usual definition of pi is the ratio of the circumference of a circle to its diameter, so that the circumference of a circle is pi times the diameter, or 2 pi times the radius. ... This give a geometric justification that the area of a circle really is "pi r squared".
-Answered by Himanshi Verma On 02 February 2019:01:33:01 PM
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