Math Gr 8 Ch 10: Classifying 2D Shapes

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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?

Two pairs of adjacent sides are equal Signup and view all the answers

What is the characteristic of an isosceles triangle?

Two sides and two angles are equal Signup and view all the answers

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

Square Signup and view all the answers

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

Diameter Signup and view all the answers

What is the characteristic of a concave polygon?

At least one interior angle is more than 180 degrees 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?

It is a rectangle. Signup and view all the answers

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

It is a right triangle. 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?

It is a convex polygon. Signup and view all the answers

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

It is a kite. 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?

It is a square. Signup and view all the answers

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

Segments. Signup and view all the answers

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

It is a circle. 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?

It is a parallelogram. Signup and view all the answers

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

2 Signup and view all the answers

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

It is a parallelogram Signup and view all the answers

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

4 Signup and view all the answers

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

8 Signup and view all the answers

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

Segment Signup and view all the answers

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

Two angles are equal Signup and view all the answers

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

5 Signup and view all the answers

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

It has line symmetry Signup and view all the answers

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

Isosceles Triangle Signup and view all the answers

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

It is a concave polygon. Signup and view all the answers

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

It is a trapezium. Signup and view all the answers

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

Triangle 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?