Triangle Measurements and Fraction Concepts

The video tutorial explains how to calculate the perimeter and area of a triangle. It begins with determining the perimeter by adding the side lengths, converting fractions to a common denominator, and simplifying the result. The area is calculated using the formula 1/2 base times height, converting mixed numbers to improper fractions, and verifying the results using a calculator. The tutorial emphasizes the importance of presenting answers in simplified form.

What is the first step in calculating the perimeter of a triangle?

• Multiply the sides together

• Add the lengths of all sides

• Subtract the smallest side from the largest

• Divide the perimeter by the number of sides

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Why do we need a common denominator when adding fractions?

• To make the fractions larger

• To simplify the fractions

• To ensure the fractions can be added together

• To convert fractions to decimals

What is the least common multiple of 3, 2, and 6?

• 12

• 6

• 3

• 18

How do you simplify the improper fraction 10/6?

• Add 2

• Subtract 2

• Multiply by 2

• Divide by 2

Tags

CCSS.7.NS.A.3

What is the final perimeter of the triangle in mixed number form?

• 18 and 1/3 inches

• 19 and 2/3 inches

• 20 and 1/2 inches

• 17 and 5/6 inches

Tags

CCSS.6.G.A.1

What formula is used to calculate the area of a triangle?

• Base minus height

• Base plus height

• One half base times height

• Base times height

How do you convert a mixed number to an improper fraction?

• Divide the numerator by the whole number

• Subtract the numerator from the whole number

• Add the whole number to the numerator

• Multiply the whole number by the denominator and add the numerator

What is the improper fraction form of 2 and 5/6?

• 12/6

• 19/6

• 17/6

• 5/6

What is the final area of the triangle in mixed number form?

• 7 and 5/6 square inches

• 10 and 1/2 square inches

• 9 and 11/12 square inches

• 8 and 11/12 square inches

Tags

CCSS.6.G.A.1

How can you verify the area calculation using a calculator?

• By checking the improper fraction

• By dividing the area by the perimeter

• By multiplying the base and height again

• By converting the result to a decimal

Tags

CCSS.6.G.A.1