A widely-known theorem can be used for this, but only if it is a right triangle (let's assume it is).
Pythagorean Theorem, or <span>a<span>^2+b^2=c^2 (the ^ means it is brought up to that power, so it would be a(squared) + b(squared) = c(squared))
Let's plug in our numbers into this equation to see what we get,
(Assuming that 10 and 15 are the legs of the triangle.)
10^2 + 15^2 = c^2 (c is your hypotenuse, or your longest side of the triangle.)
10^2 = 100 & 15^2 = 225
100 + 225 = c^2
325 = c^2
(square root)325 = c
</span></span>18.03 ≈ c<span>
So, your final equation should look like this:
10^2 + 15^2 = 18.03^2
Which it does! 100 + 225 = 325
</span><span>What must be true about the length of the third side?
The third side must equal 18.03, <u>only</u> if it is a right triangle.
</span>
The correct answer is A !
I know this doesn't help but i'm on the same thing and i just don't know
Answer:
1. (1, -3.5)
2. (-9, 25) *note, there is a typo in the question, please ask your teacher about this
Step-by-step explanation:
Use the midpoint formula to calculate the midpoint.
Use the formula to find the end point, and double the distance between your endpoint and midpoint to find the other endpoint.
Since the distance between the x coordinate is 8 (from -1 to 7), then the other endpoint is 8 away from -1, or -9.
please give thanks :)