Everyday Math
Basic Mathematics Warmups
When I was two years old, my sister was half my age. If I am now sixty years old, how old is my sister?
by
A Former Brilliant Member
By tracing the edges, we can calculate that the perimeter of figure 1 is 4 units, and the perimeter of figure 2 is 12 units. What is the perimeter of figure 3?
by
Arron Kau
Given that and are positive reals such that , find the maximum possible value of .
by
Victor Loh
A triangle, a square, a pentagon, a hexagon, an octagon, and a circle all have the same perimeter.
Which one has the smallest area?
Note: All of the polygons are regular.
by
math man
True or False?
If and are real numbers such that , then
by
Chung Kevin