Class 9
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Lines and angles
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2
Answer:
a+b+90= 180
2a = 180- 90
2a= 90
a= 90/2
a = 45
here it is 2a as a and b are equal
Step-by-step explanation:
hopes it helps you plz follow and drop me many thanks
Answered by
2
Step-by-step explanation:
a+b+angle DBE=180(linear pair)
a+b+90=180
a+b=180-90=90
a+b=90 answer
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