Question

An angle and its supplementry angle.Are in ratio 4:5 then that angle is

Answer 1

$<marquee direction="left">HEYA MATE, HERE IS UR ANSWER </marquee>$

$\huge\boxed{\red {\bold {ANSWER}}}$


Let the angle be x degrees.

Its supplimentary angle =180-x

According to the question

x:180-x=4:5

x/180-x=4/5

By cross -multiplication

5x=4 (180-x)

5x=720-4x

5x+4x=720

9x=720

x=720/9

x=80

Therefore

Angle=80 degrees

Its supplimentary angle =180-80

=100 degrees .

$\mathbb{Be\:Brainly}$

Answer 2

4x+ 5x =180
9x=180
x=180/9
x=20

so,measure of angles are 4×20=80 and 5×20=100

hence, angles are 100 and 120