State whether each pair of shapes is similar or congruent:

here are the solutions to your math questions:

2.1 Use the following triangles to answer the questions that follow:

• 2.1.1 Which triangle is isosceles? A, B or C? Triangles A and B have two equal sides, making them isosceles. Answer: $\boxed{\text{A and B}}$

• 2.1.2 What is the name of the triangle which 3 sides that are equal in length? A triangle with three equal sides is an equilateral triangle. Answer: $\boxed{\text{Equilateral triangle}}$

• 2.1.3 Which triangle has a right angle? Triangle B has a right angle, indicated by the square symbol. Answer: $\boxed{\text{B}}$

• 2.1.4 Which triangle has 2 sides that are equal? Triangles A and B both have two sides of equal length. Answer: $\boxed{\text{A and B}}$

• 2.1.5 Which triangle has 3 sides that are not equal? Triangle C has three sides of different lengths. Answer: $\boxed{\text{C}}$

2.2 Complete the table below:

• 2.2.1 Four sides equal in length Answer: $\boxed{\text{Rhombus}}$

• 2.2.2 Opposite sides equal in length Answer: $\boxed{\text{Parallelogram}}$

• 2.2.3 Only one pair of the opposite sides parallel Answer: $\boxed{\text{Trapezium}}$

• 2.2.4 All four interior angles are 90 degrees Answer: $\boxed{\text{Rectangle}}$

• 2.2.5 Two pairs of opposite sides parallel Answer: $\boxed{\text{Parallelogram}}$

2.3 State whether each pair of shapes is similar or congruent:

• (a) Two stars The stars have the same shape but different sizes. Answer: $\boxed{\text{Similar}}$

• (b) Two triangles The triangles have the same shape and appear to be the same size. Answer: $\boxed{\text{Congruent}}$

• (c) Two trapezoids The trapezoids have the same shape but different sizes. Answer: $\boxed{\text{Similar}}$

• (d) Two circles The circles have the same shape but different sizes. Answer: $\boxed{\text{Similar}}$