Use the table of trigonometric ratios, a scientific calculator, or a graphing calculator to evaluate the following trigonometric functions to the nearest tenth: (a) sin 30, (b) cos 45, (c) tan 80. (Hint: Make sure the calculator is set to “degree” mode.)

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?

He trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? ? a) 42 cm2; 27 cm2; 69 cm 2 b) 54 cm2; 27 cm2; 81 cm 2 c) 108 cm2; 27 cm2; 135 cm 2 d) 108 cm2; 13.5 cm2; 121.5 cm 2

What ratio is proportional to 18/21