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GRE Math > Geometry > Flashcards

Geometry Flashcards

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0
Q

Triangle interior angle formula

A

x+y+z=180 degrees

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1
Q

Triangle exterior angle formula

A

a+b+c=360 degrees

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2
Q

Triangle area formula

A

1/2base*height

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3
Q

Sum of any 2 sides is always > 3rd side. T or f?

A

True

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4
Q

What are the common Pythagorean triples (side ratios)?

A

3: 4:5
5: 12:13
7: 24:25
8: 15:17
9: 40:41

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5
Q

What is the formula for finding the diameter of a circle?

A

d=2r

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6
Q

What is the formula for finding the circumference of a circle?

A

C=2pir or pi*d

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7
Q

What is the formula used for finding the area of a circle?

A

A=pi*r^2

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8
Q

A circle is _____ degrees around

A

360

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9
Q

What is the formula you would use to find the percentage of the area of a sector in a circle?

A

n/360= arc ABC/circumference= area of sector OABC/area of circle O

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10
Q

The sum of interior angles of quadrilaterals= ____ degrees

A

360 degrees

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11
Q

What is the formula for finding the area of a square?

A

A=s^2

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12
Q

What is the formula for finding the area of a rectangle?

A

A=lw

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13
Q

What is the formula for finding the area of a parallelogram?

A

A=bh

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14
Q

What is the formula used to find the area of a trapezoid?

A

A=1/2(bsub1+bsub2)h

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15
Q

Who loves you?

A

Mooooosie!

16
Q

Formula for volume of uniform solid circle

A

V=pi*r^2h

17
Q

Formula for finding surface area of solid circle

A

SA=2pir^2+2pir*h

18
Q

Formula for finding volume of uniform solid rectangle

A

V=lwh

19
Q

Formula for finding surface area of uniform solid rectangle

A

SA=2(lw+lh+wh)

GRE Math (2 decks)

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