Question

find the value of x in each of the figure given below :​

Answer 1

Answer:

no.a) x=105

no.b) x=20 , 4x=80 , 5x=100

no.c) x=45 , 3x=135

no.d) x=15 , 8x=120 , 4x=60 , 3x=45 , 2x=30 , 7x=105

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Answer 2

Answer:

(a) x+75°=180° (Linear Pair)

x= 180°- 75°

x= 105°

(b) 4x+5x=180° ( Linear Pair )

9x=180°

x= 180°/9

x=20°

(c) angle AOC + angle AOD =180° (Linear Pair)

45°+3x=180°

3x= 180°- 45°

3x=135°

x= 135°/3

x=45°

Therefore, angle AOD =3x

Putting the value of x

3(45)

=135°

Thus , angle AOD= 135°

(d) 4x + 3x + 2x + 7x + 8x = 360°

24x= 360°

x= 360°/24

x= 15°

Explanation:

(d) put the value of x in different angles