for quadrilateral ABCD, what is the value of y
- 26 degrees
- 48 degrees
- 20 degrees
- 34 degrees
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Answer:
A) 26°
Step-by-step explanation:
In quad ABCD
C = 90°
B = 2y
A = 180 - 68
D= 180 - (y+48)
In a quad sum of all angles = 360°
therefore,
A + B + C + D = 360°
90 + 2y + 360 - 68 - y - 48 = 360
90-116+y = 0
y = 26°