Obtuse Angle Practice

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Question 1

Which of the following are obtuse angles?

identify all the obtuse angles

Answer

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Select and check your answer...

A. I and II
B. I and IV
C. II and III
D. II and IV

Step by Step Solution

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    Step 1

    Angle I is definitely an obtuse angle.

    identify all the obtuse angles
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    Step 2

    As for angle II, it is not an obtuse angle. This is because this angle is less than 90°.

    Angle I is an obtuse angle
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    Step 3

    Angle III is not an obtuse angle as it is greater than 180°.

    Angle III is not an obtuse angle
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    Step 4

    Angle IV is an obtuse angle as this angle is more than 90° and less than 180°.

    Angle IV is an obtuse angle
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    Step 5

    Clearly, only I and IV are obtuse angles. Hence, the answer is B.

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