With two equal sides it’s called isosceles triangle
Slope is y2-y1 divided by x2-x1. It doesn't matter which you put it for x2 or y2, but make sure to keep it consistent for whichever you choose to do first.
20 - 8/-18-1
12/-19
Since you can't simplify, the slope is 12/-19
2/10
20/100
Times 1/5 by 2 on both sidez and then times that by ten to get the second answer
Answer:
Since it's a right angled triangle
15² = 13² + x²
x² = 15²-13²
x² = 56
x = √56
x= 2√14
Hope this helps.
