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Geometry Formulas

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Si   (n-2) (180)  
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Se   360  
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Diags   n(n-3)/2  
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Point-slope   y-y1=m(x-x1)  
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Standard Form   Ax+By=C  
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Distance   Root [(x2-x1)2 + ( y2-y1)2]  
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Midpoint   (x1+x2/2 , y1+y2/2)  
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Standard Deviation   Root [ sum of (x-mean)2] / n-1  
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Area of Trapezoid   1/2h(b1+b2)  
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Area of Regular Polygon   1/2 apothem x perimeter  
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Volume of Right Prism   Area of base x height  
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Volume of Pyramid   1/3 Area of base x height  
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Volume of Cylinder   Area of base x height  
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Volume of Cone   1/3 Area of base x height  
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Volume of Sphere   4/3 pie r3  
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Lateral Area of Right Prism   Perimeter of base x height  
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Lateral Area of Pyramid   1/2 Perimeter of base x slant height  
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Lateral Area of Cylinder   Circumference of base x height  
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Lateral Area of Cone   1/2 Circumference x slant height  
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Area of Sphere   4 pie r2  
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Created by: Grae
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