Bob placed three regular pentagons together at a vertex, thinking he might be able to form a tessellation. however, they left a gap. what is the number of degrees in the measure indicated?

Given the choice between receiving $1.000.000 in one month or a single penny-doubled everyday for the period of one month; which option would you choice? show your work to support your answer. (assume that 1 month=30 days)

Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form.

What is the area of the triangle 10 13 12