1. Copy the diagrams below and draw their images after reflection in the given mirror lines.

 

(a) 

(b)

(c)

(d)

 

2. In the diagram below, m is a mirror line for the reflection M.

 

Complete the following sentences:

(a) The image of B is ...........

(b) M(D) = .............

(c) Length of AE = length of ............

(d) A ´ =.............

(e) E and F are ........................... points.

(f) BFE = ...................

 

 

3. In the diagram, n is a mirror line. Find the size of:

 

(a) ADC

(b) x

(c) y

(d)  BAC

4. Under reflection in the y-axis, give the coordinates of:

(a) A´

(b) B´

(c) C´

(d) D´

(e) E´

 

 

 

5. Lines p and q are mirror lines.

(a) Name an angle congruent to
WXY.

(b) Name a line segment equal in length to ZY.

(c) What type of triangle is WXZ?

(d) What is the image of Y under reflection in p ?

(e) Name an invariant point.

 

6. The diagram shows a triangle and its image under a reflection.

i.e. ABC  A´B´C´

 

(a) Draw in the mirror line.

(b) Join A to A´, B to B´ and C to C´

(c) What is the angle between AA´ and the mirror line you have drawn?

(d) Triangle ABC and Triangle A´B´C´ are:

A) Direct
B) Invariant
C) Congruent
D) Complementary