Question

In figure 6.66 If AB and CD are parallel find the value of x... ​

Answer 1

Answer:

x= 21°

Step-by-step explanation:

In line CD,

x+4x+75°=180°

5x=180°-75°

5x=105°

x=105°/5

x=21°

Answer 2

Answer:

we write 75 because they are alternate angles

75+x+4x=180[because they form of one line so we use

so

75+5x=180

5x=180- 75

5x=105

×=105÷5

×=21

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