Which of these is a pythagorean triple?

a) 11, 60, 62
b) 6, 8, 15
c) 5, 11, 12
d) 18, 80, 82

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

50 points! antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

What is the approximate circumference of the circle shown below?