Answer:
x = 10
Step-by-step explanation:
With reference angle 30°
Perpendicular (p) = 5 cm
hypotenuse (h) = x = ?
Now
sin 30° = p / h
0.5 = 5 / x
x = 5/ 0.5
Therefore x = 10
0.9 of 20:
You could also think of 0.9 as 9/10.
9/10, if you multiply by 2/2, is 18/20.
So therefore, you would then know that it would be 18, because 20 was the whole number, so what over 20 is equal to 9/10? 18.
A simpler method is just to multiply. 0.9 * 20 = 18.
Answer:
144
Step-by-step explanation:
Answer:
30°
Step-by-step explanation:
Since the folded paper can fit into the slide three times, we simply have to multiply 10° by 3:
10° * 3 = 30°
The angle of the slide is 30°