172,607 views
29 votes
29 votes
If the two angles are complementary, find the measure of each of angle.

If the two angles are complementary, find the measure of each of angle.-example-1
User Toebens
by
3.0k points

2 Answers

23 votes
23 votes

Answer: D, 40 and 50

Steps:

1. Since complementary angles equal 90 degrees, 4r + 5r = 90

2. 4r + 5r is 9r

3. This makes the equation, 9r=90

4. Divide both sides by 9, and then you get r=10

5. Substitute r=10 into 4r and 5r

6. This should make 4(10) and 5(10)

7. Multiply and then get 40 and 50

User Aleya
by
2.5k points
23 votes
23 votes

Answer:

D 40 and 50

Explanation:

Complimentary angles are equal to 90

User TerraPass
by
2.6k points