What is the substance called when it reaches earth's surface and is made up of molten rock, gases, and minerals? a. rhyolite b. magma c. gabbro d. lava  

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