An arrangement of two dimensional figures that can be folded to make a three dimensional figure

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer