Math Gr 8 Ch 10: Classifying 2D Shapes
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Questions and Answers

What is the characteristic of a scalene triangle?

  • One angle is 90 degrees
  • All sides and angles are equal
  • Two sides and two angles are equal
  • All sides and angles are different (correct)

    • What is the name of the polygon with all sides and angles equal?

  • Convex polygon
  • Concave polygon
  • Irregular polygon
  • Regular polygon (correct)

    • What is the distance from the center to any point on the circle called?

  • Radius (correct)
  • Chord
  • Diameter
  • Circumference

    • What is the characteristic of a kite?

    <p>Two pairs of adjacent sides are equal</p> Signup and view all the answers

    What is the characteristic of an isosceles triangle?

    <p>Two sides and two angles are equal</p> Signup and view all the answers

    What is the name of the shape with four equal sides and four right angles?

    <p>Square</p> Signup and view all the answers

    What is the distance across the circle through the center called?

    <p>Diameter</p> Signup and view all the answers

    What is the characteristic of a concave polygon?

    <p>At least one interior angle is more than 180 degrees</p> Signup and view all the answers

    A shape has four right angles and opposite sides that are equal. What can be concluded about the shape?

    <p>It is a rectangle.</p> Signup and view all the answers

    A triangle has one right angle. What can be concluded about the triangle?

    <p>It is a right triangle.</p> Signup and view all the answers

    A polygon has interior angles that are all less than 180 degrees. What can be concluded about the polygon?

    <p>It is a convex polygon.</p> Signup and view all the answers

    A shape has two pairs of adjacent sides that are equal. What can be concluded about the shape?

    <p>It is a kite.</p> Signup and view all the answers

    A shape has all sides that are equal and four right angles. What can be concluded about the shape?

    <p>It is a square.</p> Signup and view all the answers

    A circle is divided into two regions by a chord. What is the name of each region?

    <p>Segments.</p> Signup and view all the answers

    A shape has a line of symmetry and rotational symmetry. What can be concluded about the shape?

    <p>It is a circle.</p> Signup and view all the answers

    A shape has opposite sides that are parallel and opposite equal angles. What can be concluded about the shape?

    <p>It is a parallelogram.</p> Signup and view all the answers

    What is the minimum number of lines of symmetry a kite can have?

    <p>2</p> Signup and view all the answers

    If a quadrilateral has opposite sides that are equal and parallel, what can be concluded about the shape?

    <p>It is a parallelogram</p> Signup and view all the answers

    What is the maximum number of right angles a quadrilateral can have?

    <p>4</p> Signup and view all the answers

    If a polygon has interior angles that add up to 720 degrees, how many sides does it have?

    <p>8</p> Signup and view all the answers

    What is the name of the region bounded by a chord and an arc in a circle?

    <p>Segment</p> Signup and view all the answers

    If a triangle has two equal sides, what can be concluded about the triangle's angles?

    <p>Two angles are equal</p> Signup and view all the answers

    What is the minimum number of sides a concave polygon can have?

    <p>5</p> Signup and view all the answers

    If a shape has rotational symmetry, what can be concluded about the shape?

    <p>It has line symmetry</p> Signup and view all the answers

    Which of the following 2D shapes has a minimum number of lines of symmetry?

    <p>Isosceles Triangle</p> Signup and view all the answers

    A polygon has an interior angle that is 150 degrees. What can be concluded about the polygon?

    <p>It is a concave polygon.</p> Signup and view all the answers

    A quadrilateral has opposite sides that are parallel, but not equal. What can be concluded about the quadrilateral?

    <p>It is a trapezium.</p> Signup and view all the answers

    Which of the following 2D shapes has a fixed number of sides?

    <p>Triangle</p> Signup and view all the answers

    A shape has four right angles, but opposite sides are not equal. What can be concluded about the shape?

    <p>It is a rectangle.</p> Signup and view all the answers

    Which of the following 2D shapes has a maximum number of right angles?

    <p>Quadrilateral</p> Signup and view all the answers

    A circle is divided into four regions by two chords. What is the name of each region?

    <p>Segment</p> Signup and view all the answers

    Which of the following 2D shapes can have a maximum number of interior angles?

    <p>Polygon</p> Signup and view all the answers

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