Maths-
General
Easy
Question
Find x and hence find 𝑚∠𝐶𝑂𝐷
Hint:
- The angle whose measure is 90o is called a right angle.
- Measure of straight angle is 180o.
The correct answer is: 130/3
- Step by step explanation:
- Given:
𝑚∠COD = (x + 20)°
𝑚∠COP = 2x°.
- Step 1:
- From the figure it is clear that,
∠POD is right angle hence ∠POD = 90o.
and
∠POD = ∠COD + ∠COP
- Step 2:
- Put values of ∠COD and ∠COP
∠POD = ∠COD + ∠COP
90 = (x + 20) + 2x
90 = 2x + x + 20
90 = 3x + 20
3x = 90 - 20
3x = 70
x = 
- Step 3:
- ∠COD = x + 20
+ 20
+ 
+ 
- Final Answer:
Hence, the 𝑚∠𝐶𝑂𝐷 is .
- Given:
and
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