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4 cards from this section. Quick, good the night before a test.
Define the hypotenuse and its significance in a right triangle.
Think of its position in the triangle.
What is the sine of angle 30 degrees?
Use the known value or a calculator.
What is the sine of an angle in a right triangle?
Think of the definition of sine.
True or False: The hypotenuse is always the shortest side of a right triangle.
Recall the properties of right triangles.
A right triangle has a hypotenuse of 20 cm and an angle of 30°. Find both the opposite and adjacent sides.
Use both sine and cosine functions.
In a right triangle, the opposite side is 12 cm, and the hypotenuse is 15 cm. Find angle 𝜃 using the sine function.
Remember to use the inverse sine function for angles.
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