The triangle are congruent.
The one is 5 times longer on the base therefore the height is 5 times higher,
5x2 = 10m
The diameter is 80 or the first answer
Answer:
x=2
Step-by-step explanation:
9x-10 =3x+2
Subtract 3x from each side
9x-3x-10 = 3x-3x+2
6x -10 =2
Add 10 to each side
6x-10+10 = 2+10
6x = 12
Divide each side by 6
6x/6 = 12/6
x=2
Well the answer is simple it's 39 you're welcome!!