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Heron's Formula Quiz

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Questions and Answers

What is the formula for finding the area of a triangle using Heron's formula?

The area ( A ) is given by ( A = \sqrt{p(p-a)(p-b)(p-c)} ).

Using the given triangle with sides ( a = 4 ), ( b = 13 ), and ( c = 15 ), what is the area of the triangle using Heron's formula?

The area is ( A = \sqrt{p(p-a)(p-b)(p-c)} = \sqrt{16 \cdot 12 \cdot 3 \cdot 1} = 24 ).

What is the semiperimeter of a triangle with sides ( a = 4 ), ( b = 13 ), and ( c = 15 )?

The semiperimeter is ( p = \frac{a + b + c},{2} = \frac{4 + 13 + 15},{2} = 16 ).

Who is Heron's formula named after?

It is named after first-century engineer Heron of Alexandria (or Hero). Signup and view all the answers

In Heron's formula, what does the variable ( p ) represent?

The semiperimeter of the triangle. Signup and view all the answers

Match the following components of Heron's formula with their meanings:

p = Semiperimeter of the triangle A = Area of the triangle a, b, c = Lengths of the sides of the triangle p ( p - a ) ( p - b ) ( p - c ) = Expression for calculating the area of the triangle Signup and view all the answers

Match the following terms with their corresponding components in the example using Heron's formula:

4, 13, 15 = Lengths of the sides of the triangle 16 = Semiperimeter of the triangle 576 = Area of the triangle 16 ( 16 - 4 ) ( 16 - 13 ) ( 16 - 15 ) = Expression for calculating the area of the triangle Signup and view all the answers

Match the following statements with their correct information about Heron's formula:

Heron's formula is used to calculate the area of a triangle = True Heron's formula is named after Heron of Alexandria (or Hero) = True Heron's formula can be applied to any type of triangle = True Heron's formula involves the use of trigonometric functions = False Signup and view all the answers

Match the following descriptions with their corresponding components in Heron's formula:

( p = \frac{1},{2}(a+b+c) ) = Semiperimeter of the triangle ( A = \sqrt{p(p-a)(p-b)(p-c)} ) = Area of the triangle ( a, b, c ) = Lengths of the sides of the triangle ( p ( p - a ) ( p - b ) ( p - c ) ) = Expression for calculating the area of the triangle Signup and view all the answers

Match the following mathematical expressions with their meanings in Heron's formula:

( p ( p - a ) ( p - b ) ( p - c ) ) = Expression for calculating the area of the triangle ( p = \frac{1},{2}(a+b+c) ) = Semiperimeter of the triangle ( A = \sqrt{p(p-a)(p-b)(p-c)} ) = Area of the triangle ( a, b, c ) = Lengths of the sides of the triangle Signup and view all the answers