Recognize that these are isosceles right triangles, so the legs are equal and the hypotenuse is √2 times the leg length.
1. x=9, y=9√2
3. x=20, y=20√2
That's a 3 4 5 right triangle scaled by a factor of 7, so the hypotenuse must be 5 times 7.
Answer: 35
40-45 isn't equal to the other three, because the other intervals increase by 4, but 40-45 increases by 5.
Answer:
21.98
Step-by-step explanation:
7*3.16=21.98
