Geo: Unit 7 Review

Front

What is the hypotenuse in a right triangle?

Back

The hypotenuse is always the longest side of a right triangle, opposite the right angle.

Front

What is the saying to remember the trigonometric functions?

Back

SOH CAH TOA

Front

If a bear is 5 feet tall and casts a 7-foot shadow, what trigonometric function would you use to find the angle of elevation of the sun?

Back

You would use the tangent function (tan) because it relates the opposite side (height of the bear) to the adjacent side (length of the shadow).

Front

What are the side lengths that cannot form a triangle?

Back

The side lengths 4, 2, and 7 cannot form a triangle because they do not satisfy the triangle inequality theorem.

Front

Solve for x: 2x + 10 = 74. Round to the nearest tenth.

Back

x = 32.0

Front

What is the formula for the Pythagorean theorem?

Back

a² + b² = c², where c is the hypotenuse.

Front

If the lengths of the sides of a triangle are 7, 6, and 10, can they form a triangle?

Back

Yes, they can form a triangle because they satisfy the triangle inequality theorem.

Front

What is the value of sin(30 degrees)?

Back

sin(30 degrees) = 0.5

Front

What is the value of cos(60 degrees)?

Back

cos(60 degrees) = 0.5

Front

What is the value of tan(45 degrees)?

Back

tan(45 degrees) = 1