A right angle is an angle with a measure of 90 degrees.
The answer would have to be 30%
Given:
32 and 28 are the two numbers.
To find:
(a) The GCF of 32 and 28.
(b) Using the GCF, find the factor of (32-28).
Solution:
(a)
The factor forms of the given numbers are:


It is clear that, 2 and 2 are the common factors in both.


Hence, the GCF of 32 and 28 is 4.
(b)
Using the GCF we need to find the factor of (32-28).

Taking out the GCF, we get

Hence,
.
The cross section is a rectangle, because the shadowed area shows a right angle on all four sides.
Use the distance formula: