A model of a sailing boat is made to the scale
1 answer:
Answer:
Step-by-step explanation:
We are talking of a linear scale ie 1 cm = 50 cm
So if the real yacht length is 10 meters(10,000 cm), then the model length will be 10000/50 = 200 cm
However, when talking about areas, the scale factor is different. We cannot simply divide 5m by 50
Let's say the sail height is 1 meter and the sail width is 5 meters which will give a sail area of 5 sqm.
The scaled height would be 100/50 = 2cm and scaled width will be 500/50 = 10 cm
So the area of the sail on the model will be 2 x 10 =200 square cm
In short, area of sail on model = (area of sail on real yacht( ÷ (50 x 50)
Since there are 10,000 square cm to 1 square meter we get the answer as 5 x 10000/2500 = 20 square cm
You might be interested in
Answer:
Step-by-step explanation:
Given that you and a friend play a game where you each toss a balanced coin.
If the upper faces on the coins are both tails, you win $1;
if the faces are both heads, you win $2;
if the coins do not match (one shows a head, the other a tail), you lose $1 (win (−$1)).
Let Y be the amount won
Then Y can take values as 1,2 and -1
The above is the probability distribution for Y.
Answer:
The correct option is 1.
Step-by-step explanation:
The angle of elevation is the angle formed by the line of sight and the horizontal plane for an object above the horizontal.
The angle of depression is the angle formed by the line of sight and the horizontal plane for an object below the horizontal.
Since the angle 4 is the angle between the line of sight and the ground for an object above the horizontal, therefore angle 4 is the angle of elevation from the person to the radar tower.
1. "Angle 4 is the angle of elevation from the person to the radar tower."
This statement is true.
2. "Angle 4 is the angle of depression from the radar tower to the person".
This statement is is false.
3. "Angle 4 is the angle of depression from the person to the radar tower".
This statement is false.
4. "Angle 4 is the angle of elevation from the radar tower to the person".
This statement is false.
