Чему равен угол. Биссектриса

Quiz
•
Mathematics
•
2nd Grade
•
Easy
Ирина Юдакова
Used 6+ times
FREE Resource
5 questions
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1.
FILL IN THE BLANK QUESTION
2 mins • 5 pts
ОК - биссектриса угла АОВ. ∠АОК = 23°. Чему равен ∠АОВ?
Answer explanation
Т.к. ОК - биссектриса угла АОВ, следовательно ∠АОК = ∠КОВ = 23°. ∠АОВ =∠АОК + ∠КОВ = 23° + 23° = 46°. Или можно просто 23° умножить на 2.
2.
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2 mins • 5 pts
ОК - биссектриса угла АОВ. ∠КОВ = 39°. Чему равен ∠АОВ?
Answer explanation
Т.к. ОК - биссектриса угла АОВ, следовательно ∠АОК = ∠КОВ = 39°. ∠АОВ =∠АОК + ∠КОВ = 39° + 39° = 78°. Или можно просто 39° умножить на 2.
3.
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2 mins • 5 pts
ОК - биссектриса угла АОВ. ∠АОВ = 56°. Чему равен ∠АОК?
Answer explanation
Т.к. ОК - биссектриса угла АОВ, следовательно ∠АОК = ∠КОВ = 56° : 2 = 28°.
4.
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2 mins • 5 pts
ND - биссектриса угла TNE. ∠DNE = 56°. Чему равен ∠TNE?
Answer explanation
Т.к. ND - биссектриса угла TNE, следовательно ∠TNE = 2∠DNE = 2 * 56° = 112°.
5.
FILL IN THE BLANK QUESTION
2 mins • 5 pts
ND - биссектриса угла TNE. ∠TNE = 144°. Чему равен ∠DNE?
Answer explanation
Т.к. ND - биссектриса угла TNE, следовательно ∠TND = ∠DNE = 144° : 2 = 72°.
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