Crows can recognize geometric patterns, suggesting that humans aren't unique in understanding shape structure.

Crows in a lab were able to distinguish shapes that exhibited right angles, parallel lines ... Other critters might have an inherent sense of geometry, too, says Nieder, but until now, researchers ...

Narrator: What’s important to understand is that geometry has rules, has facts you need to know. Here’s a rule you probably know: that a shape with 4 right angles and 4 equal sides is a square!

Calculate the angle QPR. Give the answer to one decimal place. Label the sides of the triangle \(o\), \(a\) and \(h\). Next choose the correct ratio from \(s^o_h~c^a_h~t^o_a\). In the triangle the ...