8.4 Day 2 HW

Front

Solve for x. Round to the nearest tenth: 2x + 4 = 20

Back

x = 8.0

Front

Solve for x. Round to the nearest tenth: 3x - 5 = 16

Back

x = 7.0

Front

Find the measurement of the missing side in a right triangle with sides 3 and 4.

Back

The missing side is 5 (using Pythagorean theorem).

Front

What is the length of y in a right triangle where the other sides are 3 and 4?

Back

y = 5 (using Pythagorean theorem).

Front

What is cos B in a right triangle with adjacent side 9 and hypotenuse 41?

Back

cos B = 9/41.

Front

What is the formula for the Pythagorean theorem?

Back

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

Front

Define a right triangle.

Back

A triangle with one angle measuring 90 degrees.

Front

What is the sine of an angle in a right triangle?

Back

Sine = opposite/hypotenuse.

Front

What is the cosine of an angle in a right triangle?

Back

Cosine = adjacent/hypotenuse.

Front

What is the tangent of an angle in a right triangle?

Back

Tangent = opposite/adjacent.