In the second one I'm pretty sure you just measure the length of the points.
Triangle Area = .5 * base * height
Triangle Area = .5*15*12
Triangle Area = 90
Answer:
RT=75/4= 18.75
Step-by-step explanation:
RS+ST=RT
x+6+8=5x-5
4x=19
x=19/4
RT=5x-5
RT=5(19/4)-5
RT=95/4-20/4
RT=75/4= 18.75
