Help.

 In parallelogram ABCD, if ∠B = (x-9)°, and ∠A=(2x+29)°, find ∠C and ∠D

 

Hi Yukikawa :)

Start by drawing a paralelllogram on a bit of paper.

opp angles in a paralellogram are congruent (ths same) so 

<C=2x+29    and  <D= x-9

 

also all the angles add up to 360 degrees.  So you can add them all up and solve the equation to get the value of x

then

plug the value of x into <c and <D to get the actual numerical value for them.

 

You try it on your own.

If you post your answer I'll check it for you :)