Answer:
5
Step-by-step explanation:
22.4
If the bottom side is 20 cm, then each line BE and CE would each be 10 cm.
Now, just focus on the top left triangle. You have one side with 20 cm, and the other side with 10 cm. You are left with the hypotenuse, which you need to figure out the value of.
Since this is a right triangle, you can use the Pythagorean theorem -> a^2 + b^2 = c^2 where c is the hypotenuse.
20^2 + 10^2 = c^2
400 + 100 = c^2
500 = c^2
22.36 = c
Answer:
0.6
Step-by-step explanation:
Answer:
B. (-7,-3)
Step-by-step explanation:
Given the circle: 
The point (x,y) which lie on the circle are the coordinate which satisfies the given equation of the circle.
We now consider the given options.
<u>Option A (5,12)</u>
When x=5, y=12

<u>Option B (-7,-3)</u>
When x=-7, y=-3

<u>Option C (-6,-10)</u>
When x=-6, y=-10

<u>Option D (6,23)</u>
When x=6, y=23

We can see that only (-7,-3) satisfies the equation of the circle. Thus it is the point which lies on the circle.
The correct option is B.
I think it is A)53 because the are the same size