Find the exact tsa (total surface area) and volume of the following shape. you will need to use pythagoras

Which of the following statements is not true? a. parallel lines are lines in the same plane that never intersect. b. congruent figures have the same shape and same size angles and sides. c. similar figures must have the same shape and the same size. d. a rotation is when you turn a figure around a certain point.

Can you me find the missing length. i attached an image.

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x