Answer:
Yes
Step-by-step explanation:
To determine if this is a right triangle, use the pythagorean theorem and see if a^2 + b^2 is equal to c^2.
a^2 + b^2 = c^2
12^2 + 16^2 = 20^2
Evaluate the exponents.
144 + 256 = 400
Add them together.
400 = 400
Since a^2 and b^2 add up to equal c^2, this is a right triangle.
Answer:
Option D
Step-by-step explanation:
Combine Like Terms.

Hope this helps.
Those are positive numbers.
Those that are less than zero are called negative numbers.
Zero itself can be considered both, or neither.
One answer could be 2 as 2^2 is 4 and 2+2 also equals 4
Answer:
12 feet
Step-by-step explanation:
4 times 3 is 12 and that is how u find area I think