### Home > ACC7 > Chapter 8 Unit 5 > Lesson CC2: 8.3.4 > Problem8-108

8-108.

Draw a coordinate graph and plot the following points: $A(-1,-1)$, $B(2,2)$, $C(4,-2)$. Connect the points in order, and then connect point $C$ to point $A$. Which point could you move to make this an obtuse triangle? (Remember that an obtuse triangle is a triangle with one angle greater than $90°$.) What would be the new point?

Use the eTool below to help solve the problem.
Click the link at right for the full version of the eTool: CC2 8-108 HW eTool