Question

3,

If an angle measures 29°, find its supplement.
7
4
Kelsey is drawing a triangle with angle measures of 128° and 10°. What is the measure of
the missing angle?
A
1280
10°
В
not to scale
7.6.2 DOK

Answer 1

9514 1404 393

Answer:

3. 151°

4. 42°

Explanation:

3. The measure of the supplement is found by subtracting the angle from 180°.

supplement of 29° = 180° -29° = 151°

__

4. The total of angles in a triangle is 180°, so the third one can be found by subtracting the other two from 180°.

third angle = 180° -128° -10° = 42°