Answer:
Their measures are equal, so m∠4 = 90 . When two lines intersect to form one right angle, they form four right angles. Two lines that intersect at a right angle are called perpendicular lines.
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Answer:
Their measures are equal, so m∠4 = 90 . When two lines intersect to form one right angle, they form four right angles. Two lines that intersect at a right angle are called perpendicular lines.