Saturday

February 28, 2015

February 28, 2015

Posted by **Anonymous** on Wednesday, April 9, 2014 at 7:41pm.

- Math -
**Ms. Sue**, Wednesday, April 9, 2014 at 7:43pm5x = 90

x = ?

- Math -
**Anonymous**, Wednesday, April 9, 2014 at 7:44pm18

- Math -
**Ms. Sue**, Wednesday, April 9, 2014 at 7:48pm18 is the complementary angle. Now find the supplementary angle.

18 + X = 180

http://www.mathsisfun.com/geometry/supplementary-angles.html

- Math -
**Reiny**, Wednesday, April 9, 2014 at 8:02pmlet the angle be x

then its complement is 90-x

x = 4(90-x)

x = 360 - 4x

5x = 360

x = 72

so the angle is 72°

and its supplement is 180-72 = 108°

check:

our angle = 72

its complement = 18

is the angle 4 times its complement ?

is 72 = 4(18) ? yes

**Answer this Question**

**Related Questions**

Math help - 1. Find the measure of <s. 63 153 68 148 2. If a and b ...

Geometry - The measure of angle B, the supplement of angle A, is four times the ...

geometry - find the measure of an anGle if five times the measure of its ...

geometry - I need help with this question. "The measure of the supplement of an ...

algrbra - Complimentary angles add up to 90Ί So translate the English into Math...

Geometry - the measure of the supplement of an angle is 40 more than two times ...

geometry - Twice the measure of the supplement of an angle is 39 degrees less ...

geometry - The measure of the angles supplement is 50 degree more than five ...

Algebra - In triangle ABC, the measure of angle B is 8 degrees more than three ...

algebra 101 - If The sum of the measures of two complementary angles is 90° and ...