Geometry
1. If 2. Fill in the blanks for each conjunction, sin 20 = cos __ , sin 33 = cos __ , sin 45 = cos __
3. find the value of x,
A. sin(x) = cos 31,
B. sin 75 = cos(x),
C. sin(x-4) = cos 50

6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution

What is the y-intercept of the line with the equation 3x + 4y = 12?

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.