Question

the longest chord of a circle is 7-8cm.
What is the radius of the circle.​

Answer 1

Step-by-step explanation:

the answer is 4 cm

In classical geometry, a radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length. The name comes from the Latin radius, meaning ray but also the spoke of a chariot wheel.

Answer 2

Step-by-step explanation:

divide the longest chord with 2 ....

you will get the answer