Step-by-step explanation:
hope this help you have a great day!
We know the distance formula is

9)
Here A( -4,2) and B(1,4)
So length of AB
= 
Also C(2,1)
Length of BC
= 
So we can see that length of AB is not equal to length of BC
11.
Now AB = 
Also C(2,-1) & D(4,4)
Length of CD
= 
Yes AB = CD
When a tangent line (13.5 cm) and a secant (lines x + 8.45 cm) intersect then:
tangent line^2 = 8.45 * (8.45 + x)
13.5^2 = 71.4025 + 8.45 x
182.25 -71.4025 = 8.45x
8.45 x = 110.8475
x = 13.1180473373
x = 13.1 (rounded)
Source:
1728.com/circangl.htm
Answer:

Explanation:

<u>make the denominators same</u>

<u>join the fractions together</u>

<u>cross multiply</u>

<u>simplify</u>

<u>group the variables</u>

<u>use quadratic formula</u>

<u>simplify the following</u>

The triangles are similar because they are the same shape. :) Good luck