Question

classify the four angles of the quadrilateral. ∠a ∠b ∠c ∠d right acute obtuse

Explanation:

Step1: Recall angle - type definitions

An acute angle is less than 90°, a right angle is 90°, and an obtuse angle is greater than 90° and less than 180°.

Step2: Classify ∠A

∠A = 95°. Since 90° < 95°< 180°, ∠A is obtuse.

Step3: Classify ∠B

∠B = 100°. Since 90° < 100°< 180°, ∠B is obtuse.

Step4: Classify ∠C

∠C = 60°. Since 60°< 90°, ∠C is acute.

Step5: Classify ∠D

∠D = 110°. Since 90° < 110°< 180°, ∠D is obtuse.

Answer:

∠A: Obtuse
∠B: Obtuse
∠C: Acute
∠D: Obtuse