The Perimeter of Triangle ABC would be 60.
You can solve this by setting up proportions.
Answer:
6
/5
Step-by-step explanation:
Let's say that y is the unknown
180=2x+3+5x+1+y
180=7x+4+y
180-7x-4=y
176-7x=y=third angle
Answer:
x=-8 x=-12
Step-by-step explanation:
Divide 3 to both sides
|x+10|=2
Set x+10 to equal 2 and -2
x+10=2 x+10=-2
solve both equations
x=-8/-12
ratio of perimeter is the same as ratio of sides so perimeter would be 1:4
since area is in square units you need to square the ratio (1:4)^2 which is 1:16
