219k views
1 vote
One angle of a triangle measures 100°. The other two angles are in a ratio of 5:11. What are the measures of those two angles?

1 Answer

3 votes

Answer:

Explanation:

Let x be the measure of the smaller angle, and y be the measure of the larger angle. Then we know that:

x + y + 100 = 180, since the sum of the angles in a triangle is 180 degrees.

y/x = 11/5, since the other two angles are in a ratio of 5:11.

We can use the second equation to solve for y in terms of x:

y/x = 11/5

y = 11x/5

Substituting this into the first equation, we get:

x + (11x/5) + 100 = 180

Multiplying both sides by 5, we get:

5x + 11x + 500 = 900

16x = 400

x = 25

Therefore, the smaller angle measures 25 degrees, and the larger angle measures:

y = 11x/5 = 11(25)/5 = 55

So the two angles are 25 degrees and 55 degrees.

To check this make sure the sum of all the angles is 180.

55+25+100=180

User Martin Gal
by
8.5k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories