# Acc. Algebra 2

One angle of a quadrilateral has a measure a°. Find the average of a measures of the other three angles.

1. 👍 0
2. 👎 0
3. 👁 40
1. a + sum = 360
sum = (360 -a)
average = sum/3 = (360-a)/3 or 120 - a/3

1. 👍 0
2. 👎 0
posted by Damon

## Similar Questions

1. ### Math

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Drawings not to scale On Quadrilateral A B C D, side A B measures 10 units and side A D measures 6 units. Angle D measures 86

asked by panda girl on March 26, 2019
2. ### Algebra

The sum of the four angle measures of any convex quadrilateral is 360 degrees. Suppose that a convex quadrilateral has angle measures of 90, 10y+4, and 3y-2 degrees. Write an expression for the degree measure of the fourth angle.

asked by Lisa on November 2, 2015

A quadrilateral has interior angles with degree measures of 63, 4s, 5s and 2s. What is the angle measure, in degrees, of the largest angle of the quadrilateral?

asked by Venus on September 10, 2013
4. ### Math

The sum of the degree measures of the angles of a quadrilateral is 360. Find the measure of the fourth angle of each quadrilateral given the degree measures of the other three angles. 4x+12, 8x - 10, 6x+5

asked by Matt on June 30, 2011
5. ### algebra 101

If The sum of the measures of two complementary angles is 90° and If one angle measures 15° more than twice the measure of its complement, find the measure of each angle. What is The measure of one angle is 1 times the measure

asked by misty on January 8, 2012
6. ### geometry

If all four sides of a quadrilateral measure the same length, and one coner angle measures 90 degree, what shape can the quadrilateral be A)rhombus B)rectangle C)square D)parallelogram E)all of these

asked by alisa on November 14, 2011
7. ### math

The measures of the angles of the quadrilateral are in the ratio 2:4:6:8. Find the measure of each angle.

asked by Riya on April 11, 2015
8. ### math

The measures of the angles of the quadrilateral are in the ratio of 2:4:6:8, Find the measure of each angle.

asked by princy on April 11, 2015
9. ### math

the measures of the angles of a quadrilateral are in the ratio of 1:2:3:4, find the measure of each angle

asked by Anonymous on December 4, 2010
10. ### geometry

Three interior angles of a quadrilateral have measures of 52∘, 53∘, and 154∘. Find the fourth angle measure.

asked by re on December 17, 2015

More Similar Questions