Question

two supplementary angles are such that the measure of one angle is 4/5 of the measure of the other angle . find the measure of the angle.​

Answer 1

Answer:

let 1 angle x

another 4/5 of

x +4/5x =180

90x =900

x = 10

4/5x = 72

pls mark brainliest

Answer 2

Answer:

The angles are 100° and 80°.

Step-by-step explanation:

Given :

The angles are = Supplementary

One angle = 4/5 of other

To find :

The two angles

Solution :

Let the angles be -

• One as x
• Second as 4/5x

Supplementary angles are the angles which sum up and make 180°.

➨ x + (4x/5) = 180°

➨ (5x + 4x)/5 = 180°

➨ 9x/5 = 180°

➨ 9x = 180 × 5

➨ 9x = 900

➨ x = 900/9

➨ x = 100

One angle = 100°

$\rule{300}{1.5}$

Second angle =

➨ 4/5 × x

➨ 4/5 × 100

➨ 4/1 × 20

➨ 80

Second angle = 80°

$\therefore$ The angles are 100° and 80°.