GMAT Math : Basic Rules For Maths

This Set Of Card Contains Some Basic Rules To Remember For Maths Questions. Some Rules Are Very Simple, But Still Nice For Revision.
Changes are done, please view the flashcard.

Preview Flashcards

What is Even x Even ?
What is Even x Odd ?
Odd x Odd = ?
Even + Even = ?
Even + Odd = ?
Odd + Odd = Even
In a right triangle with two 45 degree angles, what are the ratios?
s: s : square root of 2
In a right triangle, if two sides are 7 and 25, what's the third?
In a right triangle 30:60:90 degree angles, what are the ratios of the sides?
a: 2a: a X square root of 3
In a right triangle with sides 15 and 36, how much is the third side?
39 (it's a 5: 12: 13 triangle)
What happens when you divide an isoceles triangle in half down the middle?
You get a 30: 60: 90 triangle with sides of a, 2a and a x square root of 3
Area of a square based on diagonal is?
1/2 d squared
To find the interior angle of any polygone use what formula?
(n-2) X 180 degrees
Volume of a cube =
e cubed
volume of a rectangular solid =
l X w x h
volume of a cylinder =
(PI X r-squared) X height
total surface area of a cylinder
circumference X height + 2 (pi X r-squared)
What is the third side if a triangle is 36: 45 ?
What is the diagonal of a square side of 64?
64 x square root 2
Total surface area of a cube
Length of an arc is?
(2 x pi-r)* x/360 circumference * fraction of the circle
If J can paint a house in six days and E can paint it in 8, how long will it take working together?
x/6 + x/8 = 1
What's the avg among a sequence of equally spaced numbers?
The median
The surface area of a cylinder is
2-pi-squared + 2-pi X radius X height
volume formula for a cylinder
V = pi X r-squared X height

Upgrade and get a lot more done!