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10 Cards in this Set

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  • Back
What is the ratio between the shortleg, long leg, and hypotenuse of a 30-60-90 triangle?
short leg = x
long leg = 2x
hypotenuse = x square root 3
What is the formula for the area of a triangle?
1/2bh
What is a special ratio right triangle?
short leg = 3x
long leg = 4x
hyptenuse = 5x
(also, 5x:12x:13x)
What is the point-slope formula?
y-y1 = m(x-x1)
What is the relationship between the slopes of perpendicular lines?
a perpindicular line's slope is the negative reciprocal of the the other line
What is the volume of a cylindar?
V=(Pi)(r2)(h)
What is the surface area of a rectangular solid?
2(lw + lh+ wh)
What is the volume of a rectangular solid?
lwh
What is the slope of a line formula?
y2-y1/x2-x1
What is the midpoint formula?
x1+x2/2, y1+y2/2