Tag: acute and obtuse angles

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Multiple choice maths construction of angles identifying angles acute and obtuse angles types of angle

An angle which measures more than $\displaystyle 0^{o}$ and less than $\displaystyle 90^{o}$ is called:

  1. obtuse

  2. acute

  3. right

  4. none
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An angle which measure more than $0^o$ and less than $90^o$ is an acute angle.

An angle which measure more than $90^o$ and less than $180^o$ is an obtuse angle.
Hence, the answer is acute.

Multiple choice maths construction of angles identifying angles acute and obtuse angles types of angle

 $\displaystyle 89^{o}$ is an example of:

  1. obtuse angle

  2. acute angle

  3. right angle

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
An angle with measure $=90^{o}$ is a right angle
An angle with measure $>90^{o}$ is an obtuse angle
An angle with measure $<90^{o}$ is an acute angle

Here, $89^o$ is less than $90^o$. 

Hence, it is an acute angle.

Multiple choice maths construction of angles identifying angles acute and obtuse angles types of angle

$\displaystyle 179^{o}$ is an example of:

  1. obtuse angle

  2. acute angle

  3. right angle

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
An angle with measure $=90^{o}$ is a right angle
An angle with measure $>90^{o}$ is an obtuse angle
An angle with measure $<90^{o}$ is an acute angle

Here, $179^o$ is greater than $90^o$ and less than $180^{o}$. 

Hence, it is an obtuse angle.

Multiple choice maths construction of angles identifying angles acute and obtuse angles types of angle

An angle which measures $\displaystyle 180^{o}$ is called:

  1. zero angle

  2. right angle

  3. straight angle

  4. acute angle
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An angle which measure $0^0$ is called zero angle.

An angle which measure more than $0^o$ and less than $90^o$ is an acute angle.
An angle which measures $90^o$ is called a right angle.

An angle which measure more than $90^o$ and less than $180^o$ is an obtuse angle.
An straight line makes the angle of $180^o$.
Hence, the answer is straight angle.

Multiple choice maths complementary angle, supplementary angles and adjcent angles acute and obtuse angles types of angle measurement of an angle

Two triangles are similar, if their corresponding angles are ________.

  1. Proportional

  2. Equal

  3. A & B

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Two triangles are similar, if their corresponding angles are equal.

(Two triangles are similar, if their corresponding angles are equal and corresponding sides are proportional.)