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Answered by
1
Answer:
135
Step-by-step explanation:
given that ABC is a straight line it makes an angle of 180 degrees
angle ABD is half of a right angle meaning that it is 45 degrees
according to given figure
CBD+ABD=180
CBD+45=180
CBD=135
Answered by
0
Answer:
angle DBC = 135°
Step-by-step explanation:
ABC is a line , and BD intersect it
angle ABC + angle DBC = 180°..........1
given angle ABD = (1/2) × (90°)
=> angle ABD = 45°
putting value of angle ABD in equation 1....
we get,
angle DBC = 180° - 45°
=> angle DBC = 135°
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