+79 Let ABCD be a parallelogram. If AC = 9 and BD = 17, then find AB^2 + BC^2.
+118696
Let ABCD be a parallelogram. If AC = 9 and BD = 17, then find AB^2 + BC^2.
BC2=4.52+8.52−(2∗4.5∗8.5∗cosα)(1) AB2=4.52+8.52−(2∗4.5∗8.5∗cos(180−α))AB2=4.52+8.52+(2∗4.5∗8.5∗cos(α))(2)(1)+(2)=
You can check and finish it
+118696 Do you repost because you are too lazy to finish it yourself?
https://web2.0calc.com/questions/still-stuck
To ignore an answer and then repost is the height of rudeness.
