Question

Acellus

D
320
A
410
С.
B
mZB = [?]
Enter the number that belongs in
the green box

Answer 1

∠ B= 107°

Explanation:

The sum of the 3 angles in Δ ACD = 180° , then

∠ D = 180° - (32 + 41)° = 180° - 73° = 107°

The opposite angles D and B are congruent in a kite , so

∠ B = ∠ D = 107°