Задача Задача №2356010
А
А
a) ∠CED = 90°.
b) ∠AOB = 56°, ∠CED = 84°.
c) ∠AOB = 24°, ∠CED = 56°; ∠AOB = 3⋅∠CED — ∠AOB = 27°, ∠CED = 9°.
d) ∠AOB = 20x + 44°, ∠CED = 10x + 46°; 20x + 44° = 10x + 46°; 10x = 2°; x = 0,2; ∠AOB = 48°, ∠CED = 56°.
a) ∠CED = 90°.
b) ∠AOB = 56°, ∠CED = 84°.
c) ∠AOB = 24°, ∠CED = 56°; ∠AOB = 3⋅∠CED — ∠AOB = 27°, ∠CED = 9°.
d) ∠AOB = 20x + 44°, ∠CED = 10x + 46°; 20x + 44° = 10x + 46°; 10x = 2°; x = 0,2; ∠AOB = 48°, ∠CED = 56°.
