addy0572 addy0572

19-06-2020
Mathematics

contestada

for quadrilateral ABCD, what is the value of y

- 26 degrees
- 48 degrees
- 20 degrees
- 34 degrees

for quadrilateral ABCD what is the value of y 26 degrees 48 degrees 20 degrees 34 degrees class=

Respuesta :

marybrownie36 marybrownie36

19-06-2020

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°

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