SOLUTION: Given that since (x+y)=0.7 cm, and angle ACD is obtuse, what is the area of triangle ACD: the question link: https://cdn.discordapp.com/attachments/849084987319779368/9093730527631

Algebra ->  Triangles -> SOLUTION: Given that since (x+y)=0.7 cm, and angle ACD is obtuse, what is the area of triangle ACD: the question link: https://cdn.discordapp.com/attachments/849084987319779368/9093730527631      Log On


   

Question 1187733: Given that since (x+y)=0.7 cm, and angle ACD is obtuse, what is the area of triangle ACD: the question link: https://cdn.discordapp.com/attachments/849084987319779368/909373052763136030/Screenshot_2021-11-14_at_5.23.14_PM.png
pls refer to the question link for the diagram for the question,if you have the answer pls email me at : leong.marianne@gmail.com
Thank you.
Answer by Solver92311(821) About Me  (Show Source):
You can put this solution on YOUR website!
Sunday, April 2, 2017
7:06 PM





So and

, but choose "+" for acute angles and "-" for obtuse angles.

Hence, and

Use the Law of Cosines to find the measure of side AD

where is the included angle.



You can do your own arithmetic.

Use Heron's Formula to find the area now that you have the three sides.



Where is the semi-perimeter,

Again, you can do your own arithmetic




John

My calculator said it, I believe it, that settles it

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