Question

identifying and classifying angles

1. which angle number represents $angle mrk$

answer: _____ is it obtuse or acute? (circle one)

1. which angle number represents $angle bgi$

answer: _____ is it obtuse or acute? (circle one)

1. which angle number represents $angle sxu$

answer: _____ is it obtuse or acute? (circle one)

1. which angle number represents $angle cgb$

answer: _____ is it obtuse or acute? (circle one)

1. which angle number represents $angle sxu$

answer: _____ is it obtuse or acute? (circle one)

1. which angle number represents $angle mrl$

answer: _____ is it obtuse or acute? (circle one)

Explanation:

Step1: Locate ∠MRK

∠MRK has vertex R, formed by lines RM and RK. This is angle 5.
Check angle type: Angle 5 is >90°, so obtuse.

Step2: Locate ∠BGI

∠BGI has vertex G, formed by lines GB and GI. This is angle 3.
Check angle type: Angle 3 is <90°, so acute.

Step3: Locate ∠SXU

∠SXU has vertex X, formed by lines XS and XU. This is angle 2.
Check angle type: Angle 2 is >90°, so obtuse.

Step4: Locate ∠CGB

∠CGB has vertex G, formed by lines GC and GB. This is angle 1.
Check angle type: Angle 1 is >90°, so obtuse.

Step5: Locate ∠SXU (Q17)

∠SXU has vertex X, formed by lines XS and XU. This is angle 2.
Check angle type: Angle 2 is <90°, so acute.

Step6: Locate ∠MRJ

∠MRJ has vertex R, formed by lines RM and RJ. This is angle 5.
Check angle type: Angle 5 is <90°, so acute.

Answer:

1. 5, Obtuse
2. 3, Acute
3. 2, Obtuse
4. 1, Obtuse
5. 2, Acute
6. 5, Acute