1. Open the applet and turn on the axis and grid.[br][br]2. Using your Polygon tool or the segment tool create a triangle ABC using the following vertices:[br][br]A(-1,-3); B(0,2) and C(1,0)[br][br]3. Right click each side and use the settings to display the length of each segment. You may also read the length on the formula bar on the left hand side of the applet.
Classify the triangle according to the length of its side
Write down the size of angle ACB correct to 1 d.p.
1. Using the Selection tool move Point A to the origin, Point B to (0,4) and point C to (0,5).[br][br]2. Using the angle tool. Please measure the size of angle ACB. [br]NB: Remember angles are always measured anticlockwise with the vertex in the middle.[br]
Write down the size of angle ACB correct to 1d.p.