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What did Archimedes invent to defend Syracuse?
Archimedes had several inventions to defend Syracuse, including walls that could shoot arrows. The most famous of these inventions was the Archimedes Claw; a device to lift attacking Roman warships out of the water. No one today has been able to figure out how this device worked.
What does a semi circle measure?
It does not measure anything. It is a two dimentional figure equivelent to half of a circle.
How do you figure the radius of a circle?
You take out your ruler and measure it.
How do you figure lineal ft of a circle?
Measure the circle's radius and square it. Multiply the result by pi. This number is the circle's lineal foot measurement.
What do you think were the three most important contributions made by Hellenistic scientist and mathematics Explain?
#1 The Pythagorean Theorem > length of sides of a right triangle #2 Pi or 3.14 > > figure the area of a circle #3 Archimedes Principle > measure volume by liquid displacement
How do you figure out diameter?
Assuming you are talking about a circle:* If you know the radius of the circle, multiply that by 2. * If you know the circumference of the circle, divide that by pi. * If you know nothing, you need to measure either the radius, the diameter, or the circumference.
How do you know the radius of a circle?
you either measure it, or use pi to figure it out from the circumference, or divide the diameter by 2.
What is defined to be an arc that has an central angle with the measure of 180 degrees?
If the arc is circular, such a figure is a semicircle or half circle.
Is a circle a solid figure?
A circle is a plane figure. A 'circular' solid figure would be a sphere.
How do you a measure the volume of a circle?
A circle has no volume. Volume is only for 3-D shapes. A circle does not have volume because it is a 2 dimentional figure.A circle can only have circumfrance and area. Only a 3 dimentional figure can have volume. Mabye you are thinking about a sphere.
How do you figure out the circumference of something without knowing the diameter?
If you know the radius, double that to get diameter. If you have neither radius or diameter, then measure around the outside.
Is a sphere a perfect circle?
no, it is sphere is not a perfect circle. because sphere is 3dimensional figure and circle is 2 dimensional figure
