Question

Aaron is standing at point C, watching his friends on a Ferris wheel. He knows that he is looking up at a 57° angle and the measure of arc BD is 80°. What is the measure of arc AED? °

Answer 1

Answer:

146°

Step-by-step explanation:

in Quadrilateral CBOD

∠C + ∠D + ∠O  + ∠B = 360°

∠C = 57° given  ∠D = 90° (Tangent) ∠O = (Arc BD is 80°)

=> 57° + 90° + 80° + ∠B = 360°

=> ∠B =  133°

∠OBA = 180° - 133° = 47°

∠OAB = ∠OBA = 47°  ( as two sides are equal = Radius)

∠BOA = 180° - 47° - 47° = 86°

∠AOD = 80° + 86° = 146°

Answer 2

Answer     194.................................

Step-by-step explanation: