part I. Formulas & methods for Triangles, Proportions, Geometry,
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | alter to create problem that will result in isolation of desired variable. then compute; (10)6x-1/2y=29 60x-5y=290 2x + 5y = 20 62x=310
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| show | a straight line measures 180deg.
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| the sum of all angles formed when 2 lines intersect = how many degrees? | show 🗑
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| what angle is formed by two perpendicular lines? | show 🗑
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| what kind of triangle has three angles of 60 degrees? | show 🗑
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| show | draw line through the middle
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| What kind of triangle is characterized by having two equal sides, and thus two equal angles? | show 🗑
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| > A of triangle = >>how does this relate to calculating the area of a quadrilateral? | show 🗑
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| a 3-4-5 Triangle is characterized by what? | show 🗑
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| if a triangle has the following measurements: s1=15, s2=20, s3=25 what type of triangle is it? | show 🗑
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| show | a ratio of (5x)(12x)(13x)
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| show | A Triangle has s1=10, s2=24; the Hypoteneuse= 26 is a 5-12-13 Triangle
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| show | x : x^sq rt (3) : 2x = 30:60:90 degree triangle
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| if we have a triangle who's side lengths are in the ratio of; 1: 1: (square root of 2)... a) What kind of Triangle do we have? b) What are the internal angles? | show 🗑
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| show | The internal angles of an Isosceles Triangle are 45-45-90 degrees
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| show | Where there is a triangle w/ s1=5, Hypoteneuse=10 a) s2= 5^sq rt (3) b,c) The degree measurements of s1=30, s2= 60, Hypoteneuse=90 Thus, it is a 30-60-90 degree Triangle
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| show | Pythagoeran Theorem: a^2+b^2=c^2 >When you have 2 sides of a RIGHT Triangle, use to find Hypoteneuse
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| If you divide a Right Triangle in a way which creates two smaller Right Triangles, >What is the characteristic of the resulting two Triangles in relation to the origional? | show 🗑
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| Circumference of a Circle =.... | show 🗑
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| show | Area of Circle = (Phi) 2r
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| # of degrees in an angle formed by two radii at the center of a circle= ? (in relation to arc formed by their rotation) | show 🗑
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| What is a Trapezoid characterized by? How do you calculate its' Area? | show 🗑
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| show | Interest (I)= principal x interest rate x time
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| Calculate distance traveled | show 🗑
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| Calculate slope of a line (m).... | show 🗑
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| show | y= m(x)+b
OR
y= b+m(x)
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| Calculate midpoint on a line... (X point, y point) | show 🗑
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| Formula for Sum of Polygon Interior Angles...(n=# of angles) | show 🗑
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| Degree measurement of a single Interior Angle of regular Polygon... n=# of sides | show 🗑
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| (A) of Parallelogram=.... | show 🗑
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| Rectangular Prism: >(V)... > Surface Area ... | show 🗑
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| show | For General Prisms:
V= (Area of Base x Height)
SA= (Sum of the three faces) x 2
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| show | V= Area of Base x Height
SA =
2(A of Base)+ Circumference(h)
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| cube Pyramid V= SA= | show 🗑
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| show | Sphere
V= 4/3(Π)(r^3)
SA= 4(Π)(r^2)
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| show | A = Square Root of [(C ^2)-(B^2)]
B= Square Root of [(C ^2)-(A^2)]
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| For a Triangle who has two angles of 45 deg. >Find deg. 3rd angle... & > Find Ratio of sides ... | show 🗑
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| show | >Angle 3 = 60 deg.
>Ratio of sides is:
(x): (sq.rt. of 3):(2x)
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| if we have a right triangle with 2 sides 2 & 4.. > what is the other side & what is the Triangle ratio? > what degree ratio is the triangle? | show 🗑
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| Length of Arc= | show 🗑
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| show | A of Arc =
Π(r^2)
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