Question

In a figure, ABC is a straight line. DBE is right angle and a=b=c=d. Find angle a.​

Answer 1

Answer:

angle a = 22.5°

Step-by-step explanation:

DBE is right angled triangle

angle B = 90°

now,

a=b=c=d_____ given (1)

a + b + c + d + angle B = 180° ____(linear pair)

4a + 90° = 180°

4a = 180° - 90°

4a = 90°

a = 90°/4

a = 22.5°