+0  
 
+1
77
2
avatar+56 

In a parallelogram ABCD, AB = 54, BC = 78, AC2 — BD2 = 8,168. Find the following.

  a. the angles ABCD

  b. the diagonals AC and BD

  c. the angles between the diagonals AC and BD

 

I have no idea how to start solving these questions. 

 Apr 28, 2023
 #1
avatar
+1

a. Angles A and C are 40 degrees, angle B and D are 140 degrees.

b. AC = 90, BD = 68

c. The angle between the diagonals is 20 degrees.

 Apr 28, 2023
 #2
avatar+56 
+1

Thank you for your answers.

Could you explain how you got those answers, please?

somebodyIUsedToKnow  Apr 28, 2023

5 Online Users

avatar
avatar
avatar