Can you pls help i need to submit it soon ..i'll mark you brainlist

How many sides does a regular polygon have if each exterior angle measures 72a.3b.4c.5d.6

If you answer right ill give brainliest, : )

Two line segments are shown in the figure below. suppose that the length of the line along the x-axis is 6, and the length of the hypotenuse of the triangle is 10. what is the equation of the hypotenuse line (shown in red, below)?