An angle is greater than 45°. Is its complementary angle greater than 45° or equal to 45° or less than 45°?
Solution:
We use the basic concept of supplementary angles adding up to 180 degrees to solve the question.
Let us represent the angle by ∠1 and its complement angle by ∠2. Let’s visually model this problem. There are two operations done in sequence.
Let's take ∠1 > 45° as given in the question, and then add ∠ 2 to both sides of the equation.
Adding ∠2 to both sides, we get∠1 + ∠2 > 45° + ∠2
90° > 45° + ∠2 [Since, ∠1 + ∠2 = 90°]
90° - 45° > ∠2
45° > ∠2
Therefore, its complementary angle will be less than 45°.
☛ Check: NCERT Solutions for Class 7 Maths Chapter 5
Video Solution:
An angle is greater than 45°. Is its complementary angle greater than 45° or equal to 45° or less than 45° ?
NCERT Solutions for Class 7 Maths Chapter 5 Exercise 5.1 Question 8
Summary:
An angle is greater than 45°. The complementary angle of the given angle will be less than 45°.
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