Friday

April 18, 2014

April 18, 2014

Posted by **Abby** on Thursday, September 22, 2011 at 10:57pm.

- Geometry -
**Anonymous**, Friday, September 23, 2011 at 2:50amTwo Angles are Supplementary if they add up to 180 °

A = smaller angle

B = larger angle

A / B = 7 / 11 Multiply both sides with 11

11 A / B = 7 Multiply both sides with B

11 A = 7 B Divide both sides with 11

A = ( 7 / 11 ) B

A + B = 180 °

( 7 / 11 ) B + B = 180 °

( 7 / 11 ) B + ( 11 / 11 ) B = 180°

( 18 / 11 ) B = 180 °

18 B = 180 ° * 11 Divide both sides with 18

18 B / 18 = 180 ° / 18 * 11

B = 10 ° * 11

B = 110 °

A = ( 7 / 11 ) B

A = ( 7 / 11 ) * 110

A = 770 / 11

A = 70 °

The smaller angle = 70 °

**Related Questions**

geometry - the ratio of two supplementary angles is 2:7. what is the measure of ...

geometry - the measures of 2 supplementary angles have the ratio 2is to 3.find ...

Math - Find the measures of two supplementary angles if the difference of their ...

geometry - Two angles of a quadrilateral measure 210° and 100°. The other two ...

Math - (1) Which of the following ingegers can not represent the lengths of the ...

geometry - I need help on this question...please help. "The measures of two ...

geometry - a tree on a 30degree slope grows straight up .what are the measure of...

Trignometry - If two angles are supplementary, then their sines are equal. ...

Geometry 9th grade - One of two supplementary angles is 4 times the other. Find ...

dma 040 - 2 angles are supplementary if their sum is 180degress. Larger angle ...