A symmetrical pattern can have multiple lines of symmetry. Name one type of line of symmetry.

One type of line of symmetry is a horizontal line, which runs left to right.

Fill in the blank: A completed symmetrical pattern with two lines of symmetry produces ___ halves when reflected across these lines.

Identical

True or False: A diagonal line of symmetry runs vertically.

False. A diagonal line of symmetry runs at an angle, neither horizontal nor vertical.

Riddle: I can be horizontal, vertical, or diagonal, and I help you find symmetry in shapes. What am I?

A line of symmetry.

What is the significance of having multiple lines of symmetry in a pattern?

An angle that measures exactly 90 degrees is called a ___ angle.

Right

What is the relationship between acute angles and right angles in terms of their measurements?

An acute angle measures less than 90 degrees, while a right angle measures exactly 90 degrees.

If one angle on a straight line is 145 degrees, the missing angle is ___ degrees.

35

A reflex angle is defined as an angle that is greater than ___ degrees but less than ___ degrees.

180; 360

True or False: A whole turn is equivalent to 180 degrees.

False; a whole turn is equivalent to 360 degrees.

Fill in the blank: An obtuse angle is greater than a right angle but less than a ___ turn.

Half

What type of angle is formed by a straight line?

Half turn (180 degrees)

Riddle: I am less than a right angle but more than zero. What type of angle am I?

Acute angle

Calculate the missing angle: If one angle measures 30 degrees on a straight line, what is the missing angle?

150 degrees

If an angle measures 270 degrees, what type of angle is it?

Reflex angle

What distinguishes a scalene triangle from other types of triangles?

A scalene triangle is characterized by having all three sides of different lengths.

Fill in the blank: Isosceles triangles have ___ line of symmetry.

One

True or False: An equilateral triangle has only one line of symmetry.

False. An equilateral triangle has three lines of symmetry.

Riddle: I have three sides, all equal and fair, my angles are equal, and symmetry's in the air. What am I?

An equilateral triangle.

How do the angles in an isosceles triangle relate to its sides?

In an isosceles triangle, the angles opposite the equal sides (base angles) are also equal.

Fill in the blank: Some triangles can tessellate, meaning they can cover a plane without ___ or overlaps.

Gaps

What types of angles can an isosceles triangle have?

An isosceles triangle can have acute angles, an obtuse angle, or a right angle.

Multiple Choice: Which type of triangle has all sides of equal length? A) Scalene B) Isosceles C) Equilateral D) Right

C) Equilateral