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math

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if triangles abc and xyz are congruent. angle a is one half the size of angle b. angle y is 90 degrees. angle c and angle z are both 45 degrees. what is the measure of angle a?

  • math - ,

    From the information, the three angles are 90-45-45.
    If a is half of b, then b=90° and a=45°.
    See if you can figure out the rest.

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