Triangle Dimensions and Area Problems

The video tutorial covers the process of finding unknown dimensions in triangles, a sixth-grade math standard. It outlines a three-step method: identifying the shape and its formula, filling in known values, and solving for the unknown dimension. Two examples are provided: one for finding the base and another for finding the height of a triangle. The tutorial emphasizes the importance of checking work by plugging values back into the formula and offers tips for problem-solving, including using reference sheets.

What is the first step in finding an unknown dimension in a triangle?

• Measure the dimensions directly

• Identify the shape and write down its formula

• Guess the missing dimension

• Use a calculator to find the answer

Why is it important to know the formula for the shape you are dealing with?

• It is not necessary at all

• It is required to solve for unknown dimensions

• It helps in guessing the dimensions

• It makes the problem more complex

What should you do after writing down the formula for the shape?

• Fill in the formula with known values

• Ignore the formula

• Start solving the equation

• Guess the unknown dimension

In the example given, what is the known height of the triangle?

• 40 millimeters

• 30 millimeters

• 20 millimeters

• 10 millimeters

What is the area of the triangle in the first example?

• 100 millimeters squared

• 110 millimeters squared

• 120 millimeters squared

• 130 millimeters squared

How do you solve for the unknown base in the example?

• By measuring the base

• By using a calculator

• By guessing the base

• By solving a one-step equation

What is the final value of the base in the example?

• 14 millimeters

• 16 millimeters

• 10 millimeters

• 12 millimeters

What is the known base of the triangle in the second example?

• 3

• 4

• 5

• 6

What is the area of the triangle in the second example?

• 85

• 90

• 80

• 75

How do you solve for the unknown height in the second example?

• By measuring the height

• By solving a one-step equation

• By using a calculator

• By guessing the height