Answer:
16
Step-by-step explanation:
You know angles B and C are both 60°, the values of the angles in an equilateral triangle. Since the sum of angles in a quadrilateral is 360°, you have
B + C + x + y = 360°
60° +60° + x + y = 360°
x + y = 240°
Answer:
18 cm.
Step-by-step explanation:
There are four sides on a square, and each side has the same measure as the other three. So, if one side measures 4.5 cm, four sides would be 4 * 4.5 = 4.5 + 4.5 + 4.5 + 4.5 = 9 + 9 = 18 cm
Hope this helps!
Answer:
y x 4 + 5
Step-by-step explanation:
(-3,4) is going to be ur answer ;)
