For each of these less-than-360-degree angles you get positive curvature and the shapes bend around into regular three-dimensional polyhedrons—but when you have 6 triangles connecting at a ...

The second one is about 3 miles south of Interstate 8 and Citrus Valley Road near Gila Bend, 32 degrees 53′ 05.04″ W 112 degrees 48′ 59.28″ N.

Three differentiated questions then reinforce understanding of angles in a triangle, use of a protractor and introduce an investigation about fitting different triangles into a 30cm square pizza box.

An equilateral triangle with side lengths of 2 cm can be used to find exact values for the trigonometric ratios of 30° and 60°. The equilateral triangle can be split into two right-angled triangles.