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Short Answers of Mensuration (Mathematics B /4MB1)

 Mensuration (2014-2016)

  1.  (a) 4000\pi cm^3 (b) 40\pi r^3,r=4
  2.   Fraction =35 \% \quad
  3.   129 \mathrm{~cm}^2
  4.   h=14
  5.   7 .3 \mathrm{~cm}^3
  6.   (a) 3.6 \times 10^{-3} (b) 5000 \quad
  7.   1260 \mathrm{~mm}^3 \quad
  8.   r=3 \mathrm{~cm} \quad
  9.   h=18 \mathrm{~cm} 
  10.   r=5
  11.   45.5 \mathrm{~cm}^2 \quad
  12.   Slant height =41,450 \pi \quad
  13.   Volume =2.27 \times 10^6 \mathrm{~m}^3.
  14.   h( cone )=2 r. height r+2 r=3 r
  15.   (a) r=2.4 \mathrm{~cm} \quad (b) 706 / 705\left(\mathrm{~cm}^3\right)  (c) \operatorname{time}(s)=13
  16.   30
  17.   (a) radius =6 \mathrm{~cm} (b) 12^2-\pi 36 (c) 21.45>21.5 OR. 21.43>21.4
  18.   107\left(\mathrm{~cm}^2\right)
  19.   (a) Area =\frac{36}{5 \pi} \mathrm{cm}^2 (b) \frac{12(\pi+5)}{5 \pi}
  20.   (a) r=16.6 \mathrm{~cm} (b) 54.9 \mathrm{~cm}
  21.   (a) 29.3 \mathrm{~cm} (b) 4.66 / 4.67 (c) 13.2 \mathrm{~cm} \quad
  22.   5 .2 \mathrm{~cm}, \frac{5}{3} \pi  

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