Lesson Worksheet: Angle Sum of a Triangle Mathematics • 8th Grade
In this worksheet, we will practice finding a missing angle in a triangle given the two other angles.
Q2:
Complete the sentence: The measure of a straight angle is the sum of the measures of the interior angles of a triangle.
- Agreater than
- Bless than
- Cequal to
Q3:
What is the sum of the measures of the two acute angles in a right-angled triangle?
Q4:
Calculate the value of .
Q5:
In triangle , and . What is ?
Q6:
Find .
Q7:
The given design is carved on a wooden board. If is a right angle, determine the values of , , and .
- A, ,
- B, ,
- C, ,
- D, ,
Q9:
In triangle , and . Find .
Q10:
In , . Determine .