A right triangle has side lengths 4 units, 5 units, and x units. It is unknown if the missing length is the longest or shortest
2 answers:
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Answer: Two column proof.
Explanation :
A two-column proof is one common way to organize a proof in geometry.Two-column proof always has two columns where one for statements and one for reasons.
Here,
is a right angle and
is a straight angle(
) . (given)
Therefore, must be right angle. ( because,
)
Which is the required proof.
Since, In the above proof both statements and reasons both mentioned, therefore, it is the two column proof.
Note: We can also make a table which consist of two columns, in first we can mention 'statements' while in second column we can mention 'reasons'.