7. A wall of length 10 m was to be built across an open
ground. The height of the wall is 4 m and thickness of
the wall is 24 cm. If this wall is to be built up with
bricks whose dimensions are 24 cm x12 cm x 8 cm,
how many bricks would be required?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

The school track has eight lanes. each lane is 1.25 meters wide. the arc at each end of the track is 180. the distance of the home straight and the radii for the arcs in the 1st 4 lanes are given. s=85m r1=36.5m r2=37.75m r3=39m r4=40.25m part one: find the radii of lanes 5 through 8 of the track. show your work. part two: if max ran around lane one, how far did he run? show your work and explain your solution. part three: max wants to run a total of three laps around the track, choose two additional lanes (2-8) for him to run and find the distance around those two lanes. show your work and round to the hundredths. part 4: based on your lane choices in part three, what was the total distance max ran in the three laps around the track?