Question

figure ABCD is a trapezoid find the value of a and c if b= 124 and d=61

Answer 1

and wat are a,b,c,d(i know theyr sides, but in which order?

Answer 2

ab at the top and dc the bottom (left to right)

Answer 3

Ok the most important thing to know about trapezoids is that there is exactly one pair of parallel sides. This means that through geometry one can determine that two pairs of angles will be supplementary. In this case, b and c must be supplementary, so the angle c is 180-124 which is 56 degrees. Angles a and d must also be supplementary, so the angle a is 119 degrees.