Question

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9. If an angle is half of its complement, find the measure of angles.
10. Two adjacent angles are in the ratio 5:3 and they together form an angle
find these angles.
in och of the following diagrams:​

Answer 1

Answer:

9. answer is 30 and 90

Step-by-step explanation:

Let angles be x ,x/2,

since angles are complementary

sum of two angles is 90 degrees

x+x/2=90

3x=180

x=60

angles are 60,30

Answer 2

Answer:

let the angle be 3x and 5x

Step-by-step explanation:

3x+ 2x + 128 = 180

5x = 180 - 128

5x = 52

x = 52/5 = 1.4