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What angle would Eratosthenes have measured had earth been flat?
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∙ 11y ago
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Wiki User
∙ 11y ago
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What angle measures 145 degrees?
An angle that measured 145 degrees would be considered an "obtuse" angle because its measurement exceeds 90 degrees. Anything below 90 degrees would be considered an "acute" angle.
What angle is 199?
An angle that is measured at 199 degrees would be considered an "Obtuse" angle. This is because the degrees measurement exceeds 90. Anything below 90 would be considered acute.
How do you measure radians?
The distance around the circle created by the angle. If an angle has a measure of 1 radians, it means that if you drew the angle out from the center and measured the distance along the circumference of the circle between the two arms, it would be equal to the radius of the circle. Or, you can convert to radians from degrees. To do this simply multiply the degree measure by pi over 180
What angle is 177 degree angle?
It would be an obtuse angle.
What is a 131 degree angle?
A 131° angle would be an obtuse angle.
Eratosthenes is an ancient astronomerhe has successfully calculated the circumference of the?
I believe that would be the Earth.
How would an acute angle measured with a projector?
90 degree
What is the opposite side of a reflex angle?
A reflex angle is one that is more than 180 degrees but less than 360 degrees. If the reflex angle measured 190 degrees, then there would be a 170 degree, or obtuse, angle opposite it. If the reflex angle measured 270 degrees, then there would be a 90 degree, or right, angle opposite it. If the reflex angle measured 300 degrees, then there would be a 60 degree, or acute, angle opposite it. It helps to draw or picture these angles as sectors of a circle.
How do you find out radius of earth?
The Greek mathematician and astronomer Eratosthenes calculated this in 200 B.C.. He knew that on a particular day in Syene, the sun would be directly overhead. He set up a stick in Alexandria 5,000 stadia away (800-900 kilometres) on this day, and measured the angle of the shadow that the sun formed at midday. He measured this to be 7.2°. He deduced that this is the same angle from the Earth's centre that the distance between the two cities represents. Since there are 360° in a circle, he worked out that 5,000 stadia is one-fiftieth of the circumference of the Earth. He therefore suggested the value of 250,000 stadia (40,000-46,000km). Astronomers recently measured it using satellite equipment and submitted the figure of 40,008 km. From this, using the geometry of circles, he could calculate the Earth's radius: Pretty good for a man who lived 2,200 years ago who only used only a stick!
If an angle measures over 90 degrees what is its complement?
obtuse angle * * * * * The complement of an angle greater than 90 degrees is not an obtuse angle! It would be a negative angle, whose measure would be 90 minus the angle whose complement you require. This would only make sense if the direction in which the angles were measured were fixed. For example bearings, which are always measured in the clockwise direction.
How would you convert an angle in degrees to angle in radians?
Divide the angle measured in degrees by (180/pi). Alternatively, multiply by (pi/180).
How do you find the complement of an angle that is over 90 degrees?
It would be a negative angle, whose measure would be 90 minus the angle whose complement you require. This would only make sense if the direction in which the angles were measured were fixed. For example bearings, which are always measured in the clockwise direction.
What angle measures 145 degrees?
An angle that measured 145 degrees would be considered an "obtuse" angle because its measurement exceeds 90 degrees. Anything below 90 degrees would be considered an "acute" angle.
What Greek astronomer used observations of the Sun's position at noon on the summer solstice at Alexandria and Syene to determine the circumference of the Earth?
n the 200s BC, Eratosthenes figured out a very clever method for measuring the size of the Earth. He heard about a well in Syene (in modern Egypt) where the sunshine reached the bottom only at noon in the summer solstice. So he knew exactly when the sun was directly overhead. Further north in Alexandria he put a stick straight up in the ground and measured the angle of its shadow at that precise moment as 7.2°. It meant that the distance from Syene to Alexandria was 7.2/360 of the Earth's circumference. Since he knew this distance, he could compute the circumference as 39250km, a diameter of about 12500km.n the 200s BC, Eratosthenes figured out a very clever method for measuring the size of the Earth. He heard about a well in Syene (in modern Egypt) where the sunshine reached the bottom only at noon in the summer solstice. So he knew exactly when the sun was directly overhead. Further north in Alexandria he put a stick straight up in the ground and measured the angle of its shadow at that precise moment as 7.2°. It meant that the distance from Syene to Alexandria was 7.2/360 of the Earth's circumference. Since he knew this distance, he could compute the circumference as 39250km, a diameter of about 12500km.
What is the angle between the star Aldebaran and the earth?
Between two points - like a star and Earth - you would have a line, not an angle. Angles may be indicated between two stars - that is, the angle would be star 1 - Earth - star 2.
What angle is 199?
An angle that is measured at 199 degrees would be considered an "Obtuse" angle. This is because the degrees measurement exceeds 90. Anything below 90 would be considered acute.
What would happen if the earth was tilted on a 28.5 degree angle instead of 23.5 degree angle?
Summers would be hotter, and winters would be colder.
