7400220113

Submitted by michaela.bailova on Thu, 07/25/2024 - 17:08
Question: 
A stretched string, 20m long, at the end of which a kite is attached, makes anangle of 70 degrees with the horizontal plane. Mark all the expressions that represent the height of the kite above the ground:
Project ID: 
7400220113
SubArea: 
Sine, cosine, tangent and cotangent
Answer 1: 
20⋅tg20∘
Answer 1 Correct: 
0
Answer 2: 
20⋅tg70∘
Answer 2 Correct: 
0
Answer 3: 
20⋅sin⁡70∘
Answer 3 Correct: 
1
Answer 4: 
20⋅cos⁡20∘
Answer 4 Correct: 
1
Answer 5: 
202−(20⋅cos⁡70∘)2
Answer 5 Correct: 
0
Answer 6: 
20⋅tg70∘⋅cos⁡70∘
Answer 6 Correct: 
1
Answer 7 Correct: 
0
Answer 8 Correct: 
0