Hannah has two bags of sweets.
In the first bag there are 5 red sweets and 7 green sweets.
In the second bag there are 7 red sweets and 4 green sweets.
Harmah takes at random a sweet from the first bag.
She then takes at random a sweet from the second bag.
(a) Complete the probability tree diagram.
first bag
red
green
11
second bag
red
(b) Work out the probability that Hannah takes two green sweets.
green
. red.
green
(2)
28
The size of each interior angle of an
Work out how many sides the poly