Question

Please help!!!!
Find the value of angle x and y

Answer 1

Answer:

5x + 4x = 180° ( linear pair )

9x = 180

x = 180/9

x = 20

5x = 5 × 20 = 100°

4x = 4× 20 = 80°

5x + y = 180° ( linear pair )

100° + y = 180°

y = 180 - 100

y = 80°

Answer 2

Answer:

the upside angle is 5x° so the downside angle will be also 5x°

because the opposite angles are equal.

the side angle is 4x° so the other side angle will be also 4x°

y=4x°

now, according to the angle sum property, sum of all angles is 360°.

so, 5x°+5x°+4x°+4x°=360°

18x°=360°

x°=360/18

=20°

so, therefore x=20° and y=4x=4×20=80°

hope it helps u