how to find the measure of x using an isosceles triangle

The video tutorial explains how to solve a geometry problem involving an isosceles triangle. It begins by introducing the concept of congruent sides in an isosceles triangle. The instructor sets up an equation to find the value of X, which represents the length of the sides. The equation is solved step-by-step, and the value of X is used to calculate the lengths of the triangle's sides. The tutorial concludes with a summary of the problem-solving process.

What should you not assume about a triangle unless specified?

• That it is a scalene triangle

• That it has three angles

• That it is a right triangle

• That its sides are equal

In an isosceles triangle, if sides AB and BC are congruent, what does this imply?

• AB is longer than BC

• AB is shorter than BC

• AB and BC are equal in length

• AB and BC are perpendicular

What is the first step in solving the equation 4X - 3 = 2X + 5?

• Subtract 2X from both sides

• Multiply both sides by 2

• Divide both sides by 4

• Add 3 to both sides

After finding X = 4, how do you find the length of side AB?

• Multiply 4 by 4 and subtract 3

• Multiply 4 by 2 and add 5

• Multiply 4 by 3 and subtract 2

• Add 4 and 2

What is the length of side AC if X = 4?

• 12

• 10

• 8

• 6