Question

in the figure Ray AB ray DE angle A =75° angle DER =40° find the measures of angle DRE and Angle ARE​

Answer 1

Answer:

∠DRE = 65°

Step-by-step explanation:

∠RDE = Ray AB = 75°

Now, we have

∠RED = 40°

∠RDE = 75°

∠DRE = x° (assuming)

We know that sum of all angles in a triangle is 180°

So,

⟹ x + 40 + 75 = 180°

⟹ x + 115 = 180

⟹ x = 180 - 115

⟹ x = 65° ans.