and draw another diagonal line to join the points and mark the angles ... triangle. Use the scissors to cut the triangle out. STEP 4: Place two of the triangles along the horizontal line. Turn the ...

Space to play or pause ... then it is easy to calculate the third remaining angle. Obtuse-angled triangle. An obtuse-angled triangle is a triangle that has one obtuse angle.

The third side is called the base, even when the triangle is in a different orientation. An isosceles triangle has two angles that are ... platforms used for space rockets. Using your maths ...