Answer:

Step-by-step explanation:
Given a circle centre J
Let the radius of the circle =r
LK is tangent to circle J at point K
From the diagram attached
Theorem: The angle between a tangent and a radius is 90 degrees.
By the theorem above, Triangle JLK forms a right triangle with LJ as the hypotenuse.
Using Pythagoras Theorem:

The length of the radius, 
Answer:
The answer is 5G
Step-by-step explanation:
Answer:
250%
Step-by-step explanation:
(2 1/2) × 100%
= 250%
= 2.5
Answer:
115
idk how to explain this but u just use the protractor
Answer:
X=1 - y/2
Step-by-step explanation:
2x = 2 - y
divide both sides by 2
x = 1 - y/2