Question 4
(i) Draw two more arrangements with dots to form the sequence: 1; 3; 6; 10; 15; ...
000
000
(ii) How many dots will there be in the 6th and 7th arrangements? Explain how you got your
answer.
(3)
(i) Draw two more arrangements with dots to form the sequence: 1; 3; 6; 10; 15; ...
000
000
(ii) How many dots will there be in the 6th and 7th arrangements? Explain how you got your
answer.
(3)