A piece for a board game is shaped like a triangular prism. The piece is 18 mm long. The base is an equilateral triangle with 10 mm sides and a height of 9 mm. Find the surface area of the game piece

When ∆rst is translated 4 units down, what are the apparent coordinates of t’? give 15 points

Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes