LESSON
OBJECTIVES
EXAMPLE
1) How long is side c? Round to the nearest tenth.
2) Find side z. Round to the nearest tenth.
3)
4)
5)
EXAMPLE
1) What is the measure of angle C? Round to the nearest degree.
2) Find the measure of angle C.
3)
4)
5)
1) Find a if c = 8, b = 10, and m A = 60
In ΔBCD, given the following measures, find the measure of the missing side.
2) c = 2, d = 5, m B = 45
3) b = 107, c = 94, m D = 105
4) Find m R.
In ΔRST, given the lengths of the sides, find the measure of the stated angle to the nearest degree.
5) r = 33, s = 65, t = 56; m S
6) r = 2.2, s = 1.3, t = 1.6; m R
7) Solve ΔKLM. Round angle measure to the nearest degree and side measure to
the nearest tenth.
Solve each triangle using the given information. Round angle measure to the nearest degree and side measure to the nearest tenth.
8) ΔXYZ: x = 5, y = 10, z = 13
Solve each triangle using the given information. Round angle measure to the nearest degree and side measure to the nearest tenth.
9) ΔKLM: k = 20, m = 24, m L = 47
10) Ms. Jenkins is buying some property that is shaped like quadrilateral ABCD. Find
the perimeter of the property.
11) Jamie, age 25, is creating a logo for herself and two cousins, ages 10 and 5. She is
using a quarter, a dime, and a nickel to represent their ages. She will hold the coins
together by soldering a triangular piece of silver wire so that the three vertices of the triangle lie at the centers of the three circular coins. The diameter of the quarter
is 24 mm, the diameter of the nickel is 22 mm, and the diameter of a dime is 10 mm. Find the measures of the three angles in the triangle.
HW on LESSON 7­7 p388 11­18 all, 20­24 even