2 years ago

In square ABCD, diagonal DB is drawn. If the m

Mathematics

1 answer:

pshichka [43]2 years ago

6 0

9514 1404 393

Answer:

x = 11

Step-by-step explanation:

The diagonal creates two isosceles right triangles, so ...

m∠CBD = 45°

3x +12 = 45

3x = 33 . . . . . . subtract 12

x = 11 . . . . . . . . divide by 3

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