Circle theorems are properties that are true for all circles, regardless of their size. There are six theorems to learn and recognise. Questions can have a combination of theorems. It is important to ...

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It is important to remember other angles rules, such as angles on a straight line add up to 180°, and to recognise angles in parallel lines. Make sure you are confident in applying Pythagoras’ theorem ...

Investigate congruence by manipulating the parts (sides and angles) of a triangle. If you can create two different triangles with the same parts, then those parts do not prove congruence. Can you ...

WBUR's Circle Round adapts carefully selected folktales from around the world into sound- and music-rich radio plays for kids ages 3-103. Each 15 to 25-minute episode explores important issues like ...

Print the coloring pages below and color while you listen! (Just click on the links). All illustrations for Circle Round and the Circle Round coloring book are created by artist Sabina Hahn.

In the study of circular functions, the unit circle plays a central role in linking angles with trigonometric values. By defining sine, cosine, and tangent in terms of coordinates on a circle of ...