Answer:
It represents both the positive and the negative square root of 256.
Step-by-step explanation:
16*16=256
-16*-16=256
They are both valid answers.
Answer:
1444.4 m2
Step-by-step explanation:
Surface Area = 2 * 3.14 * (R*R + R*L) = 2 * 3.14 * (10*10+10*13) = 1444.4 m2
Note .. You can Derive this
"Surface Area = 2 * 3.14 * (R*R + R*L)"
Using Calculus by differentiating its Volume
V = 3.14 * R * R * L
your answer is A because its the parallelogram