Download presentation

Presentation is loading. Please wait.

1
Triangles & angles

2
Algebra Section 3-4 Supplementary angles - Two angles are supplementary if the sum of their measure is 180. Complementary angles - Two angles are complementary if the sum of their measure is 90. Sum of the angles of a triangle - The sum of the measures of the angles in any triangle is 180.

3
**Section 3-4 definitions cont.**

Triangle - a polygon with tree sides and three angles. Equilateral Triangle - each angle’s measure is the same. Isosceles Triangle - at least two of the angles have the same measurement. Right triangle - has one angle that is 90 degrees.

4
Section 3-4 Examples The measure of an angle is three times the measure of its supplement. Find the measure of each angle. X +3x = 180 4x = 180 4x/4 = 180/4 ( divide both sides by 4) x = 45 Thus the measures are 45 and 3 x 45 or 135

5
Section 3-4 Examples The measure of an angle is 34 greater than its complement. Find the measure of each angle. x + (x + 34) = 90 2x + 34 = 90 2x = (subtract 34 from both sides) 2x = 56 2x/2 = 56/2 ( divide both sides by 2) x = 28 The measures are 28 and ( ) or 62

Similar presentations

Presentation is loading. Please wait....

OK

2.3 Complementary and Supplementary Angles

2.3 Complementary and Supplementary Angles

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on teamviewer free Ppt on management by objectives drucker Ppt on web page designing Ppt on different types of birds Ppt on rf remote control robot Ppt on idiopathic thrombocytopenic purpura definition Ppt on different forms of agriculture Ppt on marketing management by philip kotler marketing Ppt on microsoft project plan Ppt on rivers of india in hindi