Answer:
2 × 5 = 10
Step-by-step explanation:
Answer:

Step-by-step explanation:

A number squared also means that the number is multiplied by itself twice.

Answer:
I think it's like 20.8....but I'm not sure
This conjecture is false, A and C don't have to be complementary angles.
Let Angle A be 100 and Angle B be 80 degrees. They are supplementary (sum of 180).
Let Angle C be 100 and Angle B is still 80 degrees. They are supplementary.
However, Angle A and Angle C are not complementary (sum of 90).