3. Which angle measures more than 90 degrees? A. acute angle B. right angle C. obtuse angle D. straight angle 4. Which of the following is a measure of an obtuse angle? A. 70° B. 90° C. 120° D. 180°
Answer (1)
To answer the questions, let's first understand the different types of angles based on their measures.
Angles More Than 90 Degrees :
Acute Angle : This is an angle that measures less than 90 degrees. So, option A is not correct.
Right Angle : This is an angle that exactly measures 90 degrees. So, option B is not correct.
Obtuse Angle : This is an angle that measures more than 90 degrees but less than 180 degrees. This fits our criteria, so option C is correct.
Straight Angle : This is an angle that measures exactly 180 degrees, which is not more than 90 degrees. So, option D is not correct.
Therefore, the answer to question 3 is C. obtuse angle .
Measure of an Obtuse Angle :
70° : This is less than 90° and is considered an acute angle. Option A is not correct.
90° : This is exactly a right angle. Option B is not correct.
120° : This is more than 90° and less than 180°, making it an obtuse angle. Option C is correct.
180° : This is a straight angle. Option D is not correct.
Therefore, the answer to question 4 is C. 120° .
In summary, an obtuse angle measures more than 90 degrees but less than 180 degrees, and in this case, the options that fit these criteria are C for both questions. Understanding these types of angles helps in recognizing different geometric shapes and solving problems related to angle measurements.
