The side lengths of a triangle are 5, 8, and 12. Is this a right triangle

According to the earth science reference tables, during which geologic time period were the continents of north america,south america, and africa closest together?

What is the main purpose of the gi bill

Afootpath is to be constructed in a park in the shape of a parallelogram. when a coordinate plane is laid over a map of the park, the vertices of the footpath are (-4,2) (8,2) (11,7) and (-1,7). what is the perimeter of this path