Question

❏ Moderators ❏ Brainly Stars ✰QUESTION✰✰QUESTION✰​

Answer 1

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The ratio of angle A to angle B is 5:4.

Let the common multiple of this ratio be x

Then,

Angle A = 5 x² and angle B = 4 x °

angle A + angle B = 180 ° ( Interior angle )

5 x° + 4 x°= 180°

5 x+ 4 x= 180°

9x=180

x= 180/9

x= 20

Angle B = 4x° = 4× 20° = 80°

The measure of angle B is 80°.

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Answer 2

Answer:

The ratio of angle A to angle B is 5:4.

Let the common multiple of this ratio be x

Then,

Angle A = 5 x² and angle B = 4 x °

angle A + angle B = 180 ° ( Interior angle )

5 x° + 4 x°= 180°

5 x+ 4 x= 180°

9x=180

x= 180/9

x= 20

Angle B = 4x° = 4× 20° = 80°

The measure of angle B is 80°.