# 5)  You know that    B is the complement of     A,  that m    B = 51   and that m    A = (3x ­ 12)  .

```Unit 4 Chapter 6 Section 1a Angle Measures.notebook
February 10, 2016
5) You know that B is the complement of A, o
o
that m B = 51 and that m A = (3x &shy; 12) . Find x.
Feb 12&shy;11:11 AM
1
Unit 4 Chapter 6 Section 1a Angle Measures.notebook
February 10, 2016
Challenge&shy; show me tomorrow!
The measure of 1 in the design below is 2x &shy; 5. The measure of 2 is 2x +15. 4 and 8 are congruent. Find the measures of 9 and 10.
10
6
7
5
1
2
4
8
9
3
Jul 26&shy;12:40 PM
2
Unit 4 Chapter 6 Section 1a Angle Measures.notebook
February 10, 2016
Closure
1) What is the difference between complementary and supplementary angles?
2) What is the difference between vertical and adjacent angles?
3) Find the measures of the angle in the diagram below.
2x + 15
x
4) If A and B are supplementary and m A is 4 times m B, what is m B?
5) Identify each angle as acute, obtuse, right or straight.
a) 70 degrees
b) 90 degrees
c) 175 degrees
Jun 10&shy;11:18 AM
3
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