Here is my answer, hope to help you
Answer:
19 units
Step-by-step explanation:
Plot points A(5,2), B(-1,4), C(-2,1) and D(4,-1) on the coordinate plane. Find lengths of all sides as distances between two points:

The perimeter of the rectangle ABCD is

Both of these numbers have 2 and 5 as their factors
Answer:
390.377
Step-by-step explanation:
pi*r^2
Answer:
The equation should be h²=P²+b²
27²=15²+18²
729=225+324
729=549
thus, it is not right angle triangle