Math
posted by Randy .
1) what is the length of the diagonal of a square whose sides are 3 inches long.
A. 9 inches
B. 3 square root 2 inches****
C. 6 inches
D. 18 inches
2) which set of measure could be the side lengths of a right triangle?
A. 0.9 cm, 1.2 cm, 1.5 cm
B. 4 in, 4 in, 4 in
C. 7 m, 8m, 9m******
D. 2ft, 3ft, 4ft
3) what is 8 divided by the product of 3 and the sum of 4+ (2)?
A. 1 1/3*****
B. 1/5
C. 1/4
D. 1/6
My answers have the asterisks next to them ...please let me no if correct. Thanks

A. Correct
B. Wrong. Use Pythagorean theorem.
C. Right.