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## A dump of our free Chat sessions, in case it is useful. It excludes white boards used during paid sessions.

tutorsd6 : Please, share your Math problem...
tutorsd6 : question please
student : how do you tell if a triangle is acute when given the measurements : a=7, b=5, and c=9?
tutorsd6 : please wait for a min
tutorsd6 : i am helping other student
tutorsd6 : the angles are also in the ratio : 7 : 5 : 9
student : all the question asked was to find out what type of triangle it is using the side measures...but i am confused on how to
tutorsd6 : 7x + 5 x + 9x = 180 ; or 21x = 180
tutorsd6 : x = 8.57
tutorsd6 : 7x = 7 ( 8.57 ) = 59.99
tutorsd6 : 5x = 5 * ( 8.57 ) = 42.85
tutorsd6 : 9x = 9 ( 8.57 ) = 77.13
tutorsd6 : all the angles are acute , so it is an acute angle triangle
student : would the pythagorean* theroem also work in this situation or no?
tutorsd6 : no , we dont nedd to use the puthogorous theorem
tutorsd6 : 12 < = x
student : but if my teacher requires us to use the pythagorean theorum, how could it be solved?
student : using it
tutorsd6 : pythagorean* theroem only for right traingle
student : yeah, but wouldn't it be if it is less than it would be an acute triangle?
tutorsd6 : here all the angles are less than 90 deg , so acute angle

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