Grade 4 Mathematics Online Reviewer (Q1)

How many degrees are there in an obtuse angle?

• less than 90 degrees

• more than 90 degrees but less than 180 degrees

• exactly 90 degrees

• exactly 180 degrees

Which of the angles below measures less than 90°?

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Which statement is true about isosceles triangles?

• no equal sides and angles

• it has two equal sides

• all sides are equal

• it has 4 equal sides

Which of the following figures shows more than 90°?

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Which of the following angles measure 90 degrees?

• 1 and 2

• 2 and 3

• 3 and 4

• 1 and 4

When using a protractor to measure the angle formed by the hands of a clock at 3:00 PM, what should the measurement be?

• 90 degrees

• 60 degrees

• 45 degrees

• 120 degrees

If you were to draw a 135-degree angle using a protractor, which of the following angles best describes the type of angle created?

• Right angle

• Acute angle

• Obtuse angle

• Straight angle

You are asked to draw a quadrilateral with only one pair of parallel sides. Which shape should you draw?

• square

• rectangle

• parallelogram

• trapezoid

What kind of quadrilaterals has 4 equal sides and 4 right angles?

• square

• rhombus

• rectangle

• parallelogram

Which of the following statements is true about a scalene triangle?

• All sides are equal.

• All angles are equal.

• No sides are equal.

• It has one right angle