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Question
Find the value of x if ∠AOB is a right angle
Sum
Solution
Given that ∠AOB = 90°
∠AOB = ∠AOC + ∠COB = 90° ...(Adjacent angles)
3x + 2x = 90°
5x = 90°
x = `(90^circ)/5`
= 18°
x = 18°
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Chapter 5: Geometry - Exercise 5.6 [Page 105]
