Theorem: If two chords intersect within a circle, then the product of the lengths of the segments (parts) of one chord is equal to the product of the lengths of the segments of the other chord.

This means that

$PA\cdot PC=PB\cdot PD.$

If PA=PB, then subtituting PA instead of PB in previous equality you get

$PA\cdot PC=PA\cdot PD|:PA\Rightarrow PC=PD.$

Answer: true.

4 0

4 years ago

Insert parentheses into the expresstion 15+3-6×4 to make it equal 48

Nat2105 [25]

Answer:

(15+(3-6))x4

Step-by-step explanation:

1. 3-6 = -3

2. 15+-3 = 12

3. 12x4 = 48

8 0

3 years ago

What is 3 * 1/3 equal

natulia [17]

Answer:

Step-by-step explanation:

1/3+1/3+1/3=3/3

3/3=1

3 0

3 years ago

Read 2 more answers

A bag contains 125 marbles. Some are red and the rest are black. There are 19 red marbles for every 6 black marbles. How many re

horsena [70]

Answer:

Um I think the answer is 114. There are 19 red marbles every for black marble. Therefore, there are 114 red marbles in the bag. Stay safe and have a great rest of the day!!! Hope this helps... :D Plz mark me brainliest...

4 0

3 years ago

Which number line model represents the expression - 2 + 4.5?Choose 1 answer​

Which number line model represents the expression - 2 + 4.5?Choose 1 answer