Answer:
30
Step-by-step explanation:
perimeter = side 1+side 2
12+18=30
Assuming it's a linear equation, y= -1/2x
<span>Explanation for the last step:</span>
The answer is 72.8. in order to solve this problem, you need to use the pythagorean theorem. the equation is c^2-b^2=a^2.
75^2-18^2=a^2
75 squared minutes 18 squared is 5301. then you need to find the square root of 5301.
the square root of 5301 is 72.8079666, rounding to 72.8.