Answer:
b = 34
Explanation:
Based on the given; we know that ∠ ABD is a right angle.
A right angle is a angel that's 90 °. Which you can see if it looks like the letter "L" or "⅃". You can also know that it 90 ° if you can draw a square in the corner.
Since, it is given that ∠ FBD = 56 ° and ∠ ABD = 90 °
Then,
b + 56 = 90
b + 56 - 56 = 90-56
b = 34
Hence, value of b is 34 °
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