home Interactive Shape
a1 a2 a3 a4
b1 b2 b3 b4
c1 c2 c3 c4
d1 d2 d3 d4
e1 e2 e3 e4
f1 f2 f3 f4
ks1 ks3 & ks4 Foundation
ks2 ks4 Higher
ks4 Higher In triangle BCD, what do the four angles shown add up to?
Please enable Java for an interactive construction (with Cinderella).
The four angles shown in triangle BCD add up to