Question

Given Circle O with diameter CD C (-7. –4) and D (1,2) What is the length of the radius of Circle O?​

Answer 1

Answer:

Step-by-step explanation:

Radius = diameter ÷ 2

Diameter = distance between C and D

Find the distance using distance formula

$Diameter, CD = \sqrt{(-7-1)^2 + (-4-2)^2} = \sqrt{8^2 + 6^2} = \sqrt{100} = 10 \ units\\\\Therefore , radius = \frac{Diameter }{2} = 5 \ units$