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HW- 11.4 Practice B
11.3 to 11.5 Quiz TUESDAY 4-29-14
www.westex.org HS, Teacher Website
4-23-14
Warm up—Geometry CPA
Find each value.
1. mBCA
2. t
Solve for x.
3. 58 – x = 4 (x + 7)
4. 2 (x – 8) = 8
GOAL:
I will be able to:
1. Find the measure of an inscribed angle.
2. Use inscribed angles and their properties to solve
problems.
HW- 11.4 Practice B
11.3 to 11.5 Quiz TUESDAY 4-29-14
www.westex.org
HS, Teacher Website
Name _________________________
Geometry CPA
11.4 Inscribed Angles
GOAL:
I will be able to:
1. Find the measure of an inscribed angle.
2. Use inscribed angles and their properties to solve problems.
Date ________
An ____________ __________ is an angle whose vertex is on a circle and whose sides
contain chords of the circle. An _______________ ______ consists of endpoints that lie on
the sides of an inscribed angle and all the points of the circle between them. A chord or arc
subtends an angle if its endpoints lie on the sides of the angle.
Example 1: Finding Measures of Arcs and Inscribed Angles
Find each measure.
A. mPRU
B.
YOU TRY:
Find each measure.
A.
B. mDAE
Example 2: Hobby Application
Example 3: Finding Angle Measures in Inscribed Triangles
A. Find a.
B. Find mLJM.
YOU TRY:
a. Find z.
b. Find mEDF.
Example 4: Finding Angle Measures in Inscribed Quadrilaterals
Find the angle measures of GHJK.
YOU TRY:
Find the angle measures of JKLM.
11.4 Practice
Find each measure.
1. RUS
2. a
3. A manufacturer designs a circular ornament with lines of
glitter as shown. Find mKJN.
4. Find the angle measures of ABCD.