3 years ago

Find the value of a and b

Mathematics

1 answer:

Luba_88 [7]3 years ago

3 0

Answer:

a = 60

b = 60

Step-by-step explanation:

We know that BC is 90°, because of the square thingy.

YB is 30°.

Now we do 180 - 30 - 90 = 60 (180 is the straight angle)

60 = b

Then a is the same.

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