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3 cards from this section. Quick, good the night before a test.
Using the formula, find the area of a triangle with sides 4 and 5, and an included angle of 90°.
Use sin(90°) which equals 1.
Calculate the area of a triangle with a base of 10 and height of 5.
Use the basic area formula.
What does the 'C' in the area formula Area = 1/2 * a * b * sin(C) represent?
Think about the components of a triangle.
True or False: Heron's formula can be used without knowing any angles.
Focus on what information Heron’s formula needs.
A triangle has sides of length 10, 24, and an included angle of 60°. Calculate the area using the trigonometric formula.
Remember to calculate sin(60°) first.
Calculate the area of a triangle with sides 7, 8, and 9 using Heron’s formula. How does this compare to using the trigonometric formula?
Start with the semi-perimeter for Heron's formula.
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