All GMAT Math Resources
Example Questions
Example Question #3 : Calculating The Perimeter Of An Equilateral Triangle
Given the following regarding Triangle .
I)
II) Side is equal to light-years
What is the length of side ?
light years
light years
light years
light years
light years
light years
The trick to this one is to carefully put together what you are given.
We know that two of our angles are equal to 60 degrees. This means that the last angle is also 60 degrees. This make HFT an equilateral triangle.
Equilateral triangles always have equal sides and equal angles, so our last side has to be 7 light years as well.
Example Question #3 : Calculating The Perimeter Of An Equilateral Triangle
Calculate the perimeter of an equilateral triangle whose side length is .
The perimeter of an equilateral triangle is:
Thus.
Example Question #4 : Calculating The Perimeter Of An Equilateral Triangle
Find the perimeter of an equilateral triangle whose side length is .
To find the perimeter, you must multiply the side length by . Thus,
Example Question #73 : Triangles
Calculate the perimeter of an equilateral triangle whose side length is .
To solve, simply multiply the side length by . Thus,