You can know that the number is a multiple of another number if a number is divisible by another number. Then it can be a multiple of that number. :)
8) a regular dodecagon has 12 equal sides. So if one side is 9.25 cm, a formula we can use is:
P = 12*9.25, which is:
P = 111 cm
9) A rhombus has four equal sides, so a formula we can use is:
P = 4*1.75, which is:
P = 7 yd
10) A paralleogram has four sides where opposite sides are equal, so a formula we can use is:
P = 2*10.4 + 2*5.6, which is:
P = 32 m
168 is the area, because if you want to find the area of something, you could multiply the numbers, to find the area.
Hope this helps :)
Answer:
a
Step-by-step explanation:
dont have a rectangler prism.
