Question

if a and b are complementary angles then find the value of b if measure of a is 40 degree​

Answer 1

Answer:

If ∠A and ∠B are complementary angles, then

m(∠A+∠B)=90

o

Now, it is given that m∠A=x

o

and m∠B is denoted by y.

So, we have ⇒x

o

+y

o

=90

o

⇒y=(90−x)

o

Answer 2

Answer:

50

Step-by-step explanation:

a+b= 90

40+b = 90

b= 90-40= 50

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