Right Triangles and Trigonometry Basics

Find the length of side y.

• 22.32 cm

• 36.5 cm

• 76.34 cm

• 87.76 cm

What is the length of side x?

• 6.57 cm
• 7 cm
• 7.44 cm
• 26.33 cm

Find the length of side w.

• 21.4 cm
• 18.0 cm
• 36.5 cm
• 43.6 cm

Solve for a and b in the special right triangle.

• a = 5, b = 5
• a = 10, b = 10√2
• a = 10√2, b = 10√2
• a = 5√2, b = 5√2

Solve for x and y in the special right triangle.

• x = 7, y = 7√2
• x = 14 y = 7√2
• x = 14√2 y = 7√2
• x = 14 y = 14√2

Solve for u and v in the special right triangle.

• v = 9√3, u = 6√3
• v = 6√3 u = 9√3
• v = 9, u = 6√3
• v = 3√6, u = 6√3

Solve for x and y in the special right triangle.

• y = 4, x = 4√3
• y = 4√2, x = 4√2
• y = 4 x = 12
• y = 8/√3, x = 16/√3

Find Cos(A) as a decimal rounded the the nearest ten-thousandth.

• .4706

• 1.875

• .8824

• .5333

Find the measure of the indicated angle (?) round to the nearest tenth.

• 9.4
• 55.2
• 20.15
• 19.4

Do the following side lengths make a triangle: 20, 21, 29? If so, is the triangle acute, right, or obtuse?

• Not a triangle

• Acute

• Right

• Obtuse