geometry 2
Terms
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- Pythagorean Theorum
- A2+B2=C2
- what is the size change theorum
-
angle measure is preserved
betweenness is preserved
coliniearity is preserved
lines and their images are parallel - Formulas for Prisms
-
LA=ph
SA=LA+2B
V=BH - AA similarity Theorum
- If two triangles have two angles of one congruent to two angles of the other, then the triangles are similar
- what is the equation for a circle?
- (x-h)2+(y-k)2=r2
- Formulas for a sphere
-
SA=4(3.14)3
V=4/3PiR3 - what is a cylindric solid?
- a cylindric solid is the set of points between a region and its translation image in space, including the region and its image
- Trapezoid Area Formula
- A=1/2h(b1+b2)
- Circle Area Formula
- A=(3.14)r2
- formulas for pyramids
-
LA=1/2LP
SA=LA+b
V=1/3BH - Triangle Area Formula
- A = 1/2 hb
- Parallelogram Area Formula
- A=hb
- Circle Circumference Formula
- C=(3.14)d
- Formulas for Cylinders
-
LA=ph
SA=LA+2B
V=1/3BH
- Formulas for a cone
-
LA=1/2LC
SA=LA+B
V=1/3BH - what is the distance formula?
- the distance formula is the square root of x2 minus x1 squared plus y2 minus y1 squared
- what is the midpoint formula?
- (a+c/2), (b+d/2)
- Right Triangle Area Formula
- A = 1/2 hb
- SSS similarity Theorum
- if the three sides of one triangle are proportional to the three sides of a second triangle, then the triangles are similar
- SAS similarity theorum
- if, in two triangles, the ratios of two pairs of corresponding sides are equal and the included angles are congruent, then the triangles are similar