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OpenStudy (anonymous):
what is the area of a circle with the diameter of 3.8
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OpenStudy (e.mccormick):
Area of a circle is \(\pi r^2\). Do you know how to get the r from what you were given?
OpenStudy (anonymous):
thnkz
OpenStudy (anonymous):
Area=pi(3.14)*(1.9)^2=11.34
OpenStudy (anonymous):
what makes a triangle a right triangle ?
OpenStudy (e.mccormick):
Do you know what a right angle is?
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OpenStudy (anonymous):
yes , a triangle with 90 degree angle!!!
OpenStudy (e.mccormick):
There you go!
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