Math Problem Statement

Can you find the perimeter of these triangles with algebraic expressions as side lengths?

Solution

Let's break down the triangles one by one to find their perimeters.

1. Pink Triangle:

Sides: x+6x + 6, 3x23x - 2, and 2x+42x + 4.

  • Perimeter formula: Add all the sides. Perimeter=(x+6)+(3x2)+(2x+4)\text{Perimeter} = (x + 6) + (3x - 2) + (2x + 4) Simplifying: = 6x + 8$$ The perimeter of the pink triangle is $$6x + 8$$.

2. Yellow Triangle:

Sides: 6x+46x + 4, 7x17x - 1, and 5x+75x + 7.

  • Perimeter formula: Perimeter=(6x+4)+(7x1)+(5x+7)\text{Perimeter} = (6x + 4) + (7x - 1) + (5x + 7) Simplifying: = 18x + 10$$ The perimeter of the yellow triangle is $$18x + 10$$.

3. Green Triangle:

Sides: 4x34x - 3, 3x3x, and 5x65x - 6.

  • Perimeter formula: Perimeter=(4x3)+3x+(5x6)\text{Perimeter} = (4x - 3) + 3x + (5x - 6) Simplifying: = 12x - 9$$ The perimeter of the green triangle is $$12x - 9$$.

4. Blue Triangle:

Sides: 6x86x - 8, 3x+73x + 7, and 5x35x - 3.

  • Perimeter formula: Perimeter=(6x8)+(3x+7)+(5x3)\text{Perimeter} = (6x - 8) + (3x + 7) + (5x - 3) Simplifying: = 14x - 4$$ The perimeter of the blue triangle is $$14x - 4$$.

Do you want more details on any of these solutions or have any questions?

Relative Questions:

  1. How would the perimeter change for the pink triangle if one side is doubled?
  2. What happens to the perimeter of the yellow triangle if xx equals 2?
  3. Can the green triangle form a valid triangle for any xx? Why or why not?
  4. How would the perimeter of the blue triangle change if the constant terms were negative?
  5. How does simplifying algebraic expressions affect finding the perimeter?

Tip:

Always double-check your expression simplifications to ensure accuracy when calculating algebraic perimeters.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Algebra
Perimeter
Simplification of Expressions

Formulas

Perimeter = sum of side lengths

Theorems

Algebraic simplification

Suitable Grade Level

Grades 7-9