home Interactive Shape
a1 a2 a3 a4
b1 b2 b3 b4
c1 c2 c3 c4
ks1 ks3 & ks4 Foundation
ks2 ks4 Higher
ks4 Higher The blue angle is 3 times the size of the red one. How big are they?.
Please enable Java for an interactive construction (with Cinderella).
Angle red is Angle blue is