If you have some scratch paper handy, you can divide the track into 2 semi circles, and one rectangle. Multiply the length (100) by two since a rectangle has 2 lengths (one on top, one on bottom). However, do not add the widths to the final perimeter because it is not part of the track. Now to find the semicircles (the two curves on each end). The circumference of a circle is 2
or
Answer:
4) D
200+180+360= 740
20) C
21) B
55*2+75*2
Step-by-step explanation:
Since the formula for density is mass/volume and 60 inches =983.244 cubic centimeters the density is 7.1194
Answer:
C
Step-by-step explanation:
Answer:
a obv
Step-by-step explanation: