Answer:
Using the formula a² + b² = c², we can plug in those two numbers, which I assume are the legs, to get our answer.
- Once we plug it in, we have to isolate the variable.
THEN
- We must square root (√) the final answer. Like so:
6.4² + 8.9² = c²
DO: The variable is already isolated, so we must do this a little differently. We'll square each number like it shows, and then add the two numbers together.
6.4² = 40.96
8.9² = 79.21
NOW: We can add them together.
40.96 + 79.21 = 120.17
LOOK: 120.17 = c²
We must now get rid of the 2, by square rooting both sides!
10.9622078068 = c
TO THE NEAREST WHOLE NUMBER: 11
ANSWER:
11
