Flashcards: Ch. 8 Conjectures
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Created by:
ms_g_geometry on February 9, 2011
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Terms | Definitions |
|---|---|
 bh | If b is the length of the base, and h is the height of the rectangle, then the area of a rectangle is A= |
| bh | If b is the length of the base, and h is the height of the parallelogram, then the area of a parallelogram is A= |
| 1/2*bh | If b is the length of the base, and h is the height of the triangle is A= |
| 1/2(b1+b2)h | If b1 and b2 are the lengths of the bases, and h is the height of the trapezoid, the area of a trapezoid is A= |
| d1*d2 | If d1 and d2 are the lengths of the diagonals, then the area of a kite is A= |
| 1/2asn, 1/2aP | If a is the apothem, s is the length of each side, and n is the number of sides of a regular polygon, then the area of a regular polygon is A=_____, Since the perimeter of an n-gon is P=sn. Thus, A= |
| pi*r^2 | If r is the radius of the circle, then the area of a circle is A= |
| a/360pir^2 | If r is the radius of the circle and a is the central angle of the sector, then the area of a sector is A= |
| a/360pir^2 - 1/2*bh | If r is the radius of the circle, a is the central angle of the segment, b is the length of the chord joining the radii of the segment, and h is the perpendicular distance from the midpoint of the chord to the center of the circle, then the area of a circle is A= |
| piR^2 - pir^2 | If r is the radius of the inner circle and R is the radius of the outer circle, then the area of an annulus is A= |
| X/T | If X is the area of "what you want" and T is the total area, then the probability of X equals P(X)= |
| 2lw+2lh+2wh | If l is the length of the rectangular prism, w is the width, and h is the height, then the total surface area of a rectangular prism is equal to SA= |
| 6s^2 | If s is the length of the side of a cube, then the total surface area of a square is equal to SA= |
| 1/2P(l+a) | If a is the apothem, s is the length of each side, n is the number of sides of the regular polygon base, and l is the slant height of the sides, then the formula for the surface area of the right pyramid is equal to SA= |
| pir^2+pir*l | If l is the slant height of a cone and r is the radius of the base, then the formula for the total surface area of a right cone is equal to SA= |
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