alleryStart learning →Which angle is smaller than a right angle?
- Straight angle
- Acute angle
- Obtuse angle
- Full turn
Show answer and solution
Correct answer: B. Acute angle
An acute angle is less than 90 degrees.
Olympiad (Class 4) Geometry and Symmetry — practice questions — page 2
Explore 43 free Geometry and Symmetry questions in Olympiad (Class 4) Mathematics. Open each question or exercise to read its content, reference answers and available explanation.
Practise Geometry and Symmetry with Quill →Geometry and Symmetry questions and exercises with answers
Showing questions 31–43 of 43.
Which angle is smaller than a right angle?Read the answer and worked solution →An angle of 120 degrees is bigger than a right angle but smaller than a straight line. What is it called?Read the answer and worked solution →How many right angles are there in a square?Read the answer and worked solution →The hands of a clock show 3 o'clock. What kind of angle do they make?Read the answer and worked solution →A shape is called convex if all its inside angles are less than which number of degrees?Read the answer and worked solution →A shape is folded in half and the two halves fit exactly on each other. What can we say about the shape?Read the answer and worked solution →A shape has 6 sides. Another has 4 sides. How many more sides does the first have?Read the answer and worked solution →Ria joins a triangle and a square so that they share no sides. How many sides do the two shapes have in all?Read the answer and worked solution →Two hexagons are placed side by side but apart. How many corners are there in all?Read the answer and worked solution →Which of these words means that all angles of a shape are equal?Read the answer and worked solution →Which letter has two lines of symmetry: one up and down and one across?Read the answer and worked solution →A paper is folded once and a shape is cut out of the fold. When opened, the two sides are what?Read the answer and worked solution →Ravi says a straight line has two end points. Mia says it has none. Who is right?Read the answer and worked solution →
Worked practice questions
An angle of 120 degrees is bigger than a right angle but smaller than a straight line. What is it called?
- Acute
- Right
- Obtuse
- Reflex
Show answer and solution
Correct answer: C. Obtuse
An angle between 90 and 180 degrees is obtuse.
How many right angles are there in a square?
- 1
- 2
- 3
- 4
Show answer and solution
Correct answer: D. 4
Every corner of a square is a right angle, and a square has 4 corners.
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