Page 13 - TB_5B
P. 13
17 Congruent Angles
4 angles are formed when 2 lines intersect. Use a protractor to measure
the angles. How many different measures of angles can be found?
What you need: Protractor
ab
dc
Use a protractor to measure the angles.
a ,b ,c ,d
The measure of a is 180
b, and the measure of c is 180 d.
Since the measures of b and d are equal, the measures of a and
c are equal as well.
Therefore, the measures of angles that can be found are and
, which are different measures.
Use a protractor to measure the angles. How many different
measures of angles can you find?
different measure(s) different measure(s)
2
4 angles are formed when 2 lines intersect. Use a protractor to measure
the angles. How many different measures of angles can be found?
What you need: Protractor
ab
dc
Use a protractor to measure the angles.
a ,b ,c ,d
The measure of a is 180
b, and the measure of c is 180 d.
Since the measures of b and d are equal, the measures of a and
c are equal as well.
Therefore, the measures of angles that can be found are and
, which are different measures.
Use a protractor to measure the angles. How many different
measures of angles can you find?
different measure(s) different measure(s)
2
