Answer:

Step-by-step explanation:
by properties of parallel lines
because they form a straight angle

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The product of 59 x 38=2,242
answer=2,242
Answer:
Without having any of the side lengths, we would only be able to identify a right angle if there is a small square in the corner of any of the angles. That would indicate a right angle and there for a right triangle.
With the side lengths, you can go by the pythagorean theorem or if side A and side B equal side C or the hypotenuse (the longest side, which is alway directly across from the right angle.)
A + B = C it would be a right angle.
Step-by-step explanation: