9 15 Find the coordinates of the centroid M B44 for AABC sho

9 15. Find the coordinates of the centroid M B(4,4) for AABC shown to the right. C(8,2) 16. Circle the item which is located outside of the triangle. circumcenter of a right triangle incenter of an obtuse triangle orthocenter of an obtuse triangle centroid of an acute triangle (over

Solution

16 - .... circumcenter of right angle triangle is on hypotenuse .. so not outside ..

incenter of obtuse triangle is inside the triangle..

centroid of acute angle triangle is also inside the triangle

orthocenter of obtuse traingle is outside the triangle ..

so answer is - orthocenter of obtuse angle triangle

15 - centroid of triangle - ( (0+8+4)/3 , (0+2+4)/3 ) = (12/3 , 6/3 ) = (4, 2)