George wanted to measure the angle of a waterslide at the lake .he used a sheet of folded paper that formed 20 degree angle. he measured and found that three of the folded paper angles would fit in the angle made by the slide and the ground . what is the angle of the waterslide ?

Is a square always, sometimes, or never a parallelogram

What are the interpretations of the line 3x - 15y = 60? x-intercept y-interception a: x 20 - y -4 b: x 5 - y 20 c: x -3 - y 15 d: x -4 - y 20

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.