None of the above.
The orthocenter is the point where the three altitudes meet. An altitude is the line from one vertex perpendicular to the opposite side.
A= a+b over 2 times height
18 + 8 = 26
26 divide by 2 = 13
13 x 6 = 78
area is 78
A vertex is the common point that two lines or rays diverge from.
Answer:
Step-by-step explanation:
hello :
120+x, if x <- 120
given : x <- 120 add 120 x+120<- 120+120
x+120< 0