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GRE Math Facts
Helpful things to memorize for the GRE Quantitative Reasoning Coding the answers for this one was tricky, read the hints for formatting suggestions. Use "pi" or "3.14" for π, SRT for square root symbol, 2 can be used in place of 2nd exponent
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andiemoon
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Last updated: November 16, 2017
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First submitted
November 16, 2017
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Hint
Answer
1/8
(decimal equiv)
0.125
1/6
0.16
1/5
0.20
1/4
0.25
1/3
0.33
√2
1.40
√3
1.70
e
2.70
π
3.14
11²
=
121
12²
=
144
13²
=
169
Hint
Answer
14²
=
196
15²
=
225
16²
=
256
17²
=
289
18²
=
324
19²
=
361
(x+y)²
= _² + ___ + _²
x²+2xy+y²
(xy)(x+y)
=
x²y²
Area of a circle
πr²
Circumference of a circle
πd
Length of diagonal line bisecting 1x1 square (as if dividing square into two triangles)
use "SRT" for square root symbol in answer
√2
Height of equilateral 1x1 triangle (line drawn straight down center)
use "SRT" for square root symbol in answer
(√3) ÷ 2
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