Area of a Triangle Using Heron’s Formula

Question 2: What is the semi-perimeter (s) of a triangle with sides 5 cm, 7 cm, and 8 cm?

Question 3: Heron’s formula for the area of a triangle is:

Question 4: A triangle has sides 6 cm, 8 cm, and 10 cm. What is its semi-perimeter?

Question 5: If a triangle has sides 3 cm, 4 cm, and 5 cm, what is its area using Heron’s formula?

Question 6: Which of the following is NOT required for Heron’s formula?

Question 7: A triangle has sides 13 cm, 14 cm, and 15 cm. What is its semi-perimeter?

Question 8: What is the first step in using Heron’s formula?

Question 9: A triangle has sides 9 cm, 12 cm, and 15 cm. What is its area?

Question 10: Why is Heron’s formula useful?