Answer:
18.18%
Step-by-step explanation:
55-45=10
10/55=0.18
If you divide a negative by a negative, your result will be positive.
For example, -5/-1=5.
The sides of the triangle are 3x, 4x and 5x
3x + 4x + 5x = 90
12x = 90
x = 90/12
x = 7.5
first side = 3x = 3 * 7.5 = 22.5 cm
second side = 4x = 4 * 7.5 = 30 cm
third side = 5x = 5*7.5 = 37.5 cm
To find the area you would had to do a an triangle formula so the final answer would be 63 inches
