Question

find the TSA and volumes of the following figure please give me answer please anybody I am 10th standard ​​

Answer 1

$\huge\sf\pink{Answer}$

☞ TSA is 2337.06 cm² & Volume is

━━━━━━━━━━━━━

$\huge\sf\blue{Given}$

✭ Diameter of the figure is 21 cm

✭ Length of the cylinder is 18 cm

✭ Height of the cone is 9 cm

━━━━━━━━━━━━━

$\huge\sf\gray{To \:Find}$

◈ The volume and the TSA of the given figure?

━━━━━━━━━━━━━

$\huge\sf\purple{Steps}$

Answer has been attached!!

Here we see that the given figure constitute three figures inside it so to find the Volume & the TSA we have to seperately find them sperately and then add them up to get our final answer!!

Formulas Used

➝ Volume of Cylinder = $\sf \pi r^2 h$

➝ Volume of Cone = $\sf \dfrac{1}{3} \pi r^2 h$

➝ Volume of Hemisphere = $\sf \dfrac{2}{3} \pi r^3$

➝ CSA of cone = $\sf\pi rl$

➝ CSA of Cylinder = $\sf 2\pi r h$

➝ CSA of Hemisphere = $\sf 2\pi r^2$

$\sf \sf\star\: Diagram \:\star$

$\setlength{\unitlength}{1mm}\begin{picture}(0,0)\thicklines\put(0,0){\oval(3,9)} {\qbezier(-1.5,4.3)(-9,-1)(-1,-4.5)}\put(33,0){\oval(3,9)} \put(0,4.5){\line(9,0){3.4cm}} \put(-5,0){\line(9,0){52}}\put(0,-4.5){\line(8,0){3.4cm}} \put(33.5,4.8){\line(3,-1){1.4cm}} \put(33.5,-4.5){\line(3,1){1.4cm}} \put(0,-7){\line(8,0){4.8cm}\line(0,1){2mm}} \put(0,-7){\line(0,1){2mm}}\put(34,-7){\line(0,1){2mm}}\put(12,-10){\sf18 cm}\put(40,-10){\sf 9 cm}\put(2.9,0.9){\sf 21 cm}\end{picture}$

━━━━━━━━━━━━━━━━━━