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 (B)</p> Signup and view all the answers

What is the characteristic of an isosceles triangle?

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

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

<p>Square (B)</p> Signup and view all the answers

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

<p>Diameter (D)</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 (A)</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. (D)</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. (D)</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. (C)</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. (B)</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. (B)</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. (B)</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. (D)</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. (C)</p> Signup and view all the answers

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

<p>2 (D)</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 (A)</p> Signup and view all the answers

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

<p>4 (D)</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 (C)</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 (C)</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 (A)</p> Signup and view all the answers

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

<p>5 (A)</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 (C)</p> Signup and view all the answers

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

<p>Isosceles Triangle (B)</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. (D)</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. (C)</p> Signup and view all the answers

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

<p>Triangle (A)</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. (B)</p> Signup and view all the answers

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

<p>Quadrilateral (D)</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 (D)</p> Signup and view all the answers

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

<p>Polygon (B)</p> Signup and view all the answers

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