SOLUTION: In quadrilateral JKLM, J is 10* greater than K , L is 10* less than K , and the measure of M is 90 * . What is the measure of K ? Find the measure of angle K. Write an equat

Algebra ->  Distributive-associative-commutative-properties -> SOLUTION: In quadrilateral JKLM, J is 10* greater than K , L is 10* less than K , and the measure of M is 90 * . What is the measure of K ? Find the measure of angle K. Write an equat      Log On


   

Question 212130: In quadrilateral JKLM, J is 10* greater than K , L is 10* less than K , and the measure of M is 90 * .


What is the measure of K ? Find the measure of angle K. Write an equation and show each step to solve the equation.

Please Help,
Cheyenne
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
J+K+L+M=360
(K+10)+K+(K-10)+90=360
3K+90=360
3K=360-90
3K=270
K=270/3
K=90 ANS.
J=90+10=100 ANS.
L=90-10=80 ANS.
PROOF:
100+90+80=90=360
360=360