(i) A triangle is made up of 2 red sticks and 1 blue sticks 
. The length of a red stick is given by r and that of a blue stick is given by b. Using this information, write an expression for the total length of sticks in the pattern given below:
(ii) In the given figure, the length of a green side is given by g and that of the red side is given by p.
Write an expression for the following pattern. Also write an expression if 100 such shapes are joined together.
(a) there are total 18 side with length r and total 6 sides with length b.
∴ 18r+ 6b is the required expression
(b) for 1 figure 2g+2p
for 100 → 200g+200p
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