Answer:

The value of y is 54

Step-by-step explanation:

Given:

m∠c = 2(y + 4)

m∠d = 116

where,

m∠c supp m∠d

Find:

y

Equation:

m∠c = m∠d

2(y + 4) = 116

2y + 8 = 116

2y = 116 - 8

2y/2 = 108/2

y = 54

Check:

2(y + 4) = 116

2(54 + 4) = 116

2(58) = 116

116 = 116

Answer:

The value of y is 54

#CarryOnLearning

Step-by-step explanation:

B=2(y+4).D=116,y.

hope it helps.