9 - 12 are MULTIPLE CHOICE: 9. What are the values of the variables in parallelogram ABCD? 9. A x = 40, y = 60 B x = 30, y = 40 3x 2y © x= 60, y = 20 D x= 20, y = 60 %3D 120° x = 40, y = 30 C 10. What is LP? 20 M 10. P. 4. O 10 20 11. Find MN if the perimeter of LMNO is 70 inches. 11. 20 @ 20 units B 15 units M © 10 units D 30 units P. E 50 units 12. What are the values of x and y? 12. 5y-1/2x @x= 12, y = 6 © x= 8, y = 15 E x = 15, y = 8 Bx= 6, y = 12 4y+7 D x= 4, y = 8 3y + 6
9 - 12 are MULTIPLE CHOICE: 9. What are the values of the variables in parallelogram ABCD? 9. A x = 40, y = 60 B x = 30, y = 40 3x 2y © x= 60, y = 20 D x= 20, y = 60 %3D 120° x = 40, y = 30 C 10. What is LP? 20 M 10. P. 4. O 10 20 11. Find MN if the perimeter of LMNO is 70 inches. 11. 20 @ 20 units B 15 units M © 10 units D 30 units P. E 50 units 12. What are the values of x and y? 12. 5y-1/2x @x= 12, y = 6 © x= 8, y = 15 E x = 15, y = 8 Bx= 6, y = 12 4y+7 D x= 4, y = 8 3y + 6
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.2: The Law Of Cosines
Problem 48E
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Step 1
Solution -
9)
Since AB and CD are parallel and AC and BD are parallel
= ∠CAB = ∠CDB
= 3x = 120
= x = 120 ÷ 3
= x = 40
and ∠DBA = ∠DCA
= 2y = 60
y = 30
Option E is correct
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