Q. 853.7( 3 Votes )

# (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.

Answer :

(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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