Answer:
18
Step-by-step explanation:
The two smaller sides are 15 and the larger one is 18
Yes, SSS
PR are already a given side. PS and PQ are also given sides. Lastly, RS and RQ are given sides.
Multiply equation II by 2 and then add up the equations.
Make the x axis seconds and y axis floors. Your first point would be at (0,-2), then (1,3), then (2,8) and so on.
You could scale the axes just going by one