Question

l=31cm d=12cm h=29.5cm Find out area of cone by Total surface and Volume Please Give Answer​

Answer 1

Answer:

Area of cone =224.653$cm^{2}$

Step-by-step explanation:

According to the information provided in the question it is given as

l=31cm

d=12cm

h=29.5cm

Here diameter is = 12 cm

Hence radius =r = d/2 = 12/2  = 6 cm

$A=\pi r(r+ \sqrt{} r^{2}+h^{2} )$

Now putting the value we get the answer

[tex]A=\frac{22}{7} \times 6(6+\sqrt{} 6^{2} +29.5^{2} \\ A = \frac{22}{7}\times 36+ 6+29.5\\ A = 3.142\times 71.5\\ A = 224.653cm^{2} [/tex]

Are of cone is = 224.653$cm^{2}$