Review and Supplemental Review: Unit 7 (Chapter 6a)

Review and Supplemental Review: Unit 7 (Chapter 6a)
6.1: Law of Sines
6.2: Law of Cosines
P. 438: 43
P. 482: 13
P. 482: 17-20 (19, 20)
P. 482-483: 29-32 (31-32)
P. 485: 119, 120
For Q1-Q7, solve the triangle, if possible,
using the Law of Sines or Cosines. If two
solutions exist, find both. Round your
answers to the nearest hundredth.
1.
B = 150°, a = 10, b = 3
2.
B = 72°, C = 82°, b = 54
3.
C = 43°, a = 22.5, b= 31.4
4.
A = 75°, a = 51.2, b = 33.7
5.
a = 5, b = 8, c = 10
6.
A = 16°, B = 98°, c = 8.4
7.
B = 25°, a = 6.2, b = 4
8.
Find the area of the triangle below.
9.
Given that
, find the lengths of AB, AD, and AC
C
11.11 ft
5 cm
4 cm
B
6 cm
7.44 ft
A
D
The notorious Blood Triangle of Pindtol* extends from Oklahoma City, Ok to Helena, MT to Las Vegas, NV. Assume the following
information about said, sad triangle:
o
 The bearing from Oklahoma City, Oklahoma to Helena, Montana is N 42 W.
 Oklahoma City to Helena is 1325 miles.
 Oklahoma City to Las Vegas is 1090 miles.
 Helena to Las Vegas is 940 miles.
Find the following nautical bearings:
10. From Las Vegas to Helena
H
11. From Las Vegas to OK City
12. From Helena to OK City
L
O
13. From OK City to Las Vegas
*Places I’ve No Desire To Live