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Preview questions
1. What is Heron's Formula used for?
Calculating the area of a triangle · Finding the perimeter of a triangle · Determining the angles of a triangle · Calculating the volume of a triangle
2. If a triangle has sides of lengths 7 cm, 8 cm, and 9 cm, what is the semi-perimeter?
12 cm · 14 cm · 24 cm · 16 cm
3. What is the formula for the semi-perimeter 's' of a triangle with sides a, b, and c?
(a + b + c) / 2 · (a + b + c) / 3 · a + b + c · a * b * c
4. Using Heron's Formula, what is the area of a triangle with sides 5 cm, 12 cm, and 13 cm?
30 cm² · 60 cm² · 24 cm² · 36 cm²
5. What is the first step in using Heron's Formula?
Calculate the area · Find the semi-perimeter · Determine the longest side · Measure the angles
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