You have r^2 = 64 and want to find the square root of 64, which we'll call r.
√(r^2) = r = plus or minus √64
or: r = plus or minus 8
Answer:
Could you give the question in details please?
What’s the rest of the question
1. 7 units
2. 11 units
3. (5, -3)
4. (-4, 5)
