1 parallelogram
2 parallelogram
3 rhombus
4 rectangle
5 rhombus
Ok. because those two angles are sumplimentary, (they equal 180 degrees) we can set up an equations.
3n+n+14=180
then isolate the variable
4n+14=180
-14 -14
4n=166
then divide to undo the multiplication
4n=166
--- ----
4 4
n=41.5
Answer:
B. 12
x = 12
Also you can use mathpapa to help you with math.
Find the measure of the third angle
Use your trig functions the get the sides
Then calculate area and perimeter
