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Geometry
2.1 Name & Classify Angles
Name ________________________________ Pd. ____
Write four names for the angle shown. Then name the vertex and sides of the angle.
1.
2.
name: ________ , ________ , ________ , ________
name: ________ , ________ , ________ , ________
vertex: ________
vertex: ________
sides: ________ & ________
sides: ________ & ________
3. Name three different angles in the diagram. Then classify the angle as acute, obtuse, right, or straight.
Name
Classification
____________
________________________
____________
________________________
____________
________________________
S
Q
R
T
Classify the angle with the given measure as acute, obtuse, right, or straight.
4. m∠𝑊 = 180˚ ________________________
5. m∠𝑊 = 30˚ ________________________
6. m∠𝑊 = 90.2˚ ________________________
7. m∠𝑊 = 90˚ ________________________
Give another name for the angle in the diagram. Tell whether the angle appears to be acute, obtuse, right
or straight.
Another name
Classification
8. ∠𝐴𝐶𝐵
____________
________________________
9. ∠𝐴𝐸𝐶
____________
________________________
10. ∠𝐶𝐹𝐵
____________
________________________
11. ∠𝐷𝐹𝐵
____________
________________________
Find the indicated angle measure.
12. 𝑚∠𝑄𝑆𝑇 = __________
13. m∠𝐴𝐷𝐶 = ___________
14. m∠𝑁𝑃𝑀 = ___________
Using the given information, find the value of x and the indicated angle measure. Set up an equation and
show work!
15. Given 𝑚∠𝐹𝐽𝐻 = 168˚.
16. Given 𝑚∠𝑊𝑋𝑍 = 80˚.
x = _______
x = _______
𝑚∠𝐹𝐽𝐺 = _______
𝑚∠𝑌𝑋𝑍 = _______
⃑⃑⃑⃑⃑⃑⃑
𝑾𝒁 bisects ∠𝑿𝑾𝒀. Find the two indicated angle measures.
17.
𝑚∠𝑋𝑊𝑍 = 52˚
18.
𝑚∠𝑋𝑊𝑌 = 71˚
𝑚∠𝑋𝑊𝑌 = _______
𝑚∠𝑋𝑊𝑍 = _______
𝑚∠𝑍𝑊𝑌 = _______
𝑚∠𝑍𝑊𝑌 = _______
⃑⃑⃑⃑⃑⃑
𝑩𝑫 bisects ∠𝑨𝑩𝑪. Find the value of x and m∠𝑨𝑩𝑪. Set up an equation and show work!
19.
x = _______
𝑚∠𝐴𝐵𝐶 = _______
20.
x = _______
𝑚∠𝐴𝐵𝐶 = _______
⃑⃑⃑⃑⃑ bisects ∠𝑅𝑆𝑇, 𝑆𝑃
⃑⃑⃑⃑ bisects ∠𝑅𝑆𝑄, 𝑆𝑉
⃑⃑⃑⃑⃑ bisects ∠𝑅𝑆𝑃. The measure of ∠𝑉𝑆𝑃 is 17˚.
21. 𝑆𝑄
Draw and label a picture as accurately as possible. Find 𝑚∠𝑇𝑆𝑄.