Symmetry Answers

1.
 
(i)
(ii)
(iii)
(iv)
a,b
c
Order of rotational symmetry = 1
Order of rotational symmetry = 6
Order of rotational 
symmetry = 2
Order of rotational symmetry = 2
d
Total order of
symmetry = 2
Total order of
symmetry = 12
Total order of 
symmetry = 4
Total order of 
symmetry = 2

2. a. 4 
b. 2 
c. 6

3. Rectangle and parallelogram

4. a. CD
b. BO
c. ∠DBA
d. AOB and DOC OR AOD and BOC
e. AD

5. a. a = b = d = g = 31° and c = e = 59°, f = 90°

b. BF, FD and FE

c. AB and DE

6.

a.

b.

c.