Trigonometry Practice test 7.1 & 7.2

Online Homework System Assignment Worksheet

6/21/18 - 4:51 PM

Name: ____________________________ Class: American Public University System - Precalculus (MATH111 C003 Win 18) (3u7gt5)

Class #: ____________________________ Section #: ____________________________ Instructor:Maple T.A. Administrator Assignment:PRACTICE TEST 7.2

Question 1: (1 point)

A triangle has a base of 5 inches and sides of 3 and 4 inches.

What is the height of the triangle?

Round to the nearest hundredth.

The height is approximately ____________ in.

Question 2: (1 point)

What is the area of a triangle with sides measuring 7 cm, 7.5 cm and 10.9 cm?

Round to the nearest tenth.

Area ≈ ____________ cm2.

Question 3: (1 point)

A piece of wire is bent into the shape of a triangle. Two sides have length 19 inches and 24 inches. The angle between these two sides is 50°. What is the length of the third side to the nearest hundredth of an inch?

The length of third side is approximately ____________ inches.

Question 4: (1 point)

A Geiger counter is feet above a sample of radium in a stairwell and feet along the stairs away from directly above the substance. If based on the counter readings the radium is feet away, find , ​as shown in the picture, given and

.

Round to the nearest hundredth.

The angle of depression from the stairs to the substance is approximately ____________° .

Question 5: (1 point)

The triangle below has sides with lengths , , and .

Find the measure of the smallest angle.

Round to the nearest thousandth.

v s

d x v = 30, s = 13,

d = 37

a = 42 b = 52 c = 83

The smallest angle is approximately ____________ °.