I need help ASAP!!!!
1 answer:
Answer:
Step-by-step explanation:
the shape is made up of 2 circles and one box add the 3 areas up
circle area =
3.14* = 50.24
50.24*2 =100.48
box, box, pit now :P ooh I was thinking formula one racing, ( i've been watching that lately) anyway
box = 8*8 = 64
total = 164.48 is that an option? hmm, yes the bottom two choices.. now the perimeter . the perimeter is made up of the 2 circles
the circumference of a circle is 2r
2**r
2**4 =25.1327 that's one whole circle , multiplied by 2 , I can see , by math in my head that's about 50.26
sooo
the 3rd choice looks good :)
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Answer: 2908.92435 inches.
Step-by-step explanation for shape 1: A = 2(wl + hl + hw) = 2 · (30 · 13 + 13 · 13 + 13 · 30) = 1,898 inches.
Step-by-step explanation for shape 2:
Using the formulas:
A=2AB+(a+b+c)h
AB=s(s﹣a)(s﹣b)(s﹣c)
s=a+b+c
2
Solving for A:
A=ah+bh+ch+1
2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=9·30+13·30+9·30+1
2·﹣94+2·(9·13)2+2·(9·9)2﹣134+2·(13·9)2﹣94≈1010.92435
Step-by-step explanation for total volume: 2908.92435 inches.
