4.0-4.2 Flashcard Review

Front

What is the length of the missing side in a right triangle with sides 25 cm and 48 cm?

Back

52 cm

Front

What is the rule for a 30-60-90 triangle?

Back

Front

What type of special triangle has angles of 45°, 45°, and 90°?

Back

It is called a 45°-45°-90° triangle.

Front

In a 30-60-90 triangle, if the shorter leg is 6, what are the lengths of the other sides?

Back

x = 6, y = 3\sqrt{3}.

Front

What is the length of the hypotenuse in a 45-45-90 triangle if each leg is 4?

Back

The hypotenuse is 4\sqrt{2}.

Front

What is the formula for the area of a triangle?

Back

Area = \frac{1}{2} \times base \times height.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a^2 + b^2 = c^2, where c is the hypotenuse.

Front

What is the length of the hypotenuse in a right triangle with legs of length 3 and 4?

Back

The hypotenuse is 5.

Front

What is the relationship between the angles in an equilateral triangle?

Back

All angles in an equilateral triangle are 60°.

Front

What is the length of the side opposite the 30° angle in a 30-60-90 triangle if the hypotenuse is 10?

Back

The length is 5.