By looking at the graph we can see that the triangle is formed by 2 triangles.
1 triangle has the measures of the sides:
vertical side = 4
Horizontal side= 3
triangle2 :
vertical side: 5
horizontal side: 3
We have to find the hypotenuse of each one:
c^2 = a^2+b^2
where x is the hypotenuse and a and b are the know lengths:
Triangle 1:
c^2 = 4^2+3^2
c^2 = 16+9
c^2= 25
c= √25
c= 5
Triangle 2
C^2 = 5^2+3^2
C^2 = 25+9
c = √34
c= 5.83
Now we have the 3 sides of the big triangle:
5,5.83, 9
To find the perimeter we simply add the side lengths:
Perimeter: 5+5.83+9 = 19.8 inches
For the area we have that:
Area of a triangle: (base x height )/2
Looking it by the y axis:
A = (9 x 3)/2 = 13.5 in2