A parabolic arch has a height of 20 ft and a width of 30 ft at the base. If the vertex of the parabola is at the top of the arch, at which height above the base is it 16 ft wide? A. 13.31 ft B. 13.58 ft C. 13.88 ft D. 14.31 ft

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.

Having a hard time understanding this question (see attachment).

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.