Please someone answer the question I need help with this too I need problem 5 and 6

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0