Question

2. Find the radius of the circle in which the length of a chord and its distance from the centre are
respectively equal to
(a) 12cm and 9 cm

please solve the questions​

Answer 1

Answer:

10.81

Step-by-step explanation:

According to Pythagoras,

a²+b²=c²

let c be the radius,a be the length and b be the height.

6²+9²=c²(half length is taken to form a right angle triangle)

36+81=c²

Therefore,

c=√117

=10.81