Question

calculate the value of x​

Answer 1

solution

since EB a straight line

then

angle EAD+ angle DAC + angle CAB = 180°

3x-5+ x+20+ 65= 180

4x = 180- 80

4x = 100

x = 100/4

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Answer 2

★Solution→

angle EAD= (3x-5)°

angle DAC= (x+20)°

angle CAB= 65°

We know that ,

angle EAB= 180°

So,

angle ( EAD+DAC+CAB) = angle EAB

→ (3x-5)+(x+20)+ 65= 180

→3x-5+x+20+65 =180

→4x +80 = 180

→ 4x = 180-80

→ 4x = 100

→x= 25

So, the value of X is 25°.

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