A triangle is made up of 2 red sticks and 1 blue stick. 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
Solution:
Given, a triangle is made up of 2 red sticks and 1 blue stick
The length of a red stick is given by r and blue stick is given by b
We have to write an expression for the total length of sticks in the given figure.
From the given pattern,
Total number of red sticks = 18
Total number of blue sticks = 6
Total length of red sticks = 18 × r = 18r
Total length of blue sticks = 6 × b = 6b
Total length of sticks = length of red sticks + length of blue sticks
= 18r + 6b
Therefore, the required expression is 18r + 6b
✦ Try This: The length of a rectangle is 3x−4y+6z and the perimeter is 7x+8y+17z, find the breadth of the rectangle
☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 12
NCERT Exemplar Class 7 Maths Chapter 10 Problem 85 (i)
A triangle is made up of 2 red sticks and 1 blue stick. 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
Summary:
A triangle is made up of 2 red sticks and 1 blue stick. The length of a red stick is given by r and that of a blue stick is given by b. An expression for the total length of sticks in the given pattern is 18r + 6b
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