Triangle Properties and Equation Solving

The video tutorial explains how to solve a word problem involving an isosceles triangle. It begins by defining the problem and setting up equations based on the given conditions. The tutorial then demonstrates solving the equations using substitution to find the side lengths of the triangle. Finally, it verifies the solution and concludes with a summary of the problem-solving strategy.

What type of triangle is being discussed in the problem?

• Equilateral

• Scalene

• Right

• Isosceles

How many equal sides does an isosceles triangle have?

• None

• Three

• Two

• One

What is the relationship between the third side and the equal sides in the problem?

• The third side is equal to the equal sides

• The third side is half the length of one of the equal sides

• The third side is four centimeters shorter than double one of the equal sides

• The third side is four centimeters longer than double one of the equal sides

What is the perimeter of the triangle given in the problem?

• 90 cm

• 88 cm

• 80 cm

• 84 cm

What is the perimeter of the triangle in the problem?

• 90 cm

• 80 cm

• 88 cm

• 84 cm

What equation represents the perimeter of the triangle?

• 2x + 2y = 84

• 2x + y = 84

• x + x + y = 84

• x + y = 84

Which method is suggested for solving the equations?

• Trial and error

• Substitution method

• Graphical method

• Matrix method

What is the equation for y in terms of x?

• y = x + 4

• y = 2x + 4

• y = 2x - 4

• y = x - 4

What is the first step in solving the equations?

• Use a calculator

• Guess the answer

• Substitute the known values

• Write down the equations

What is the value of x after solving the equations?

• 20

• 26

• 24

• 22