
Вертикальные углы
Authored by Ирина Юдакова
Mathematics
2nd Grade
Used 17+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Выбери угол, вертикальный углу 1
2
3
4
Answer explanation
Вертикальные углы - это углы, стороны которых являются продолжением сторон другого. Вертикальные углы равны. Угол вертикальный с углом 1 - это угол 3.
2.
MULTIPLE SELECT QUESTION
45 sec • 5 pts
Выбери углы, смежные с углом 1
2
3
4
Answer explanation
Два угла, у которых одна сторона общая, а две другие являются продолжением одна другой,называются смежными.
Углы 1 и 2 смежные.
Углы 1 и 4 смежные.
3.
FILL IN THE BLANK QUESTION
1 min • 5 pts
∠1 = 27°. Чему равен угол ∠3?
Answer explanation
Вертикальные углы равны.
∠1 = ∠3 = 27°
4.
FILL IN THE BLANK QUESTION
1 min • 5 pts
∠1 = 27°. Чему равен угол ∠2?
Answer explanation
Сумма смежных углов равна 180°
∠1 + ∠2 = 180°
∠2 = 180° - ∠1 = 180° - 27° = 153°
5.
FILL IN THE BLANK QUESTION
1 min • 5 pts
∠1 = 27°. Чему равен угол ∠4?
Answer explanation
Сумма смежных углов равна 180°
∠1 + ∠4 = 180°
∠4 = 180° - ∠1 = 180° - 27° = 153°
6.
FILL IN THE BLANK QUESTION
1 min • 5 pts
∠1 + ∠3= 84°. Чему равен угол ∠1?
Answer explanation
∠1 = ∠3 , как вертикальные
Т.к. ∠1 + ∠3 = 84°, следовательно
∠1 = ∠3 = 84° : 2 = 42°
7.
FILL IN THE BLANK QUESTION
1 min • 5 pts
∠1 + ∠3= 84°. Чему равен угол ∠2?
Answer explanation
∠1 = ∠3 , как вертикальные
Т.к. ∠1 + ∠3 = 84, следовательо
∠1 = ∠3 = 84° : 2 =42°.
∠1 и ∠2 смежные,
по свойству смежных углов
∠1 + ∠2 = 180°, следовательно ∠2 = 180°- ∠1 = 180° - 42° = 138°
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