Can you divide an angle into three even smaller angles using any geometric tools?

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

What is sin 7x/4 ? i need on this urgent trig