Question
Which statement is true if c 
d?
- Cannot be determined
Hint:
If two sides of two adjacent acute angles are perpendicular, then the angles are complementary.
The correct answer is:
Given: 
If two sides of two adjacent acute angles are perpendicular, then the angles are complementary. Then, the sum of 
and 
will be 90°
Thus, .
Related Questions to study
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What are the lines parallel to CD?
For such questions, we should know about parallel lines and perpendicular lines. The line joining the two parallel lines will be perpendicular to both the lines. So, the other way to check for parallel lines is by drawing a line joining both.
What are the lines parallel to CD?
For such questions, we should know about parallel lines and perpendicular lines. The line joining the two parallel lines will be perpendicular to both the lines. So, the other way to check for parallel lines is by drawing a line joining both.
