Question

a conical tent with base radius 7m and 24m is made from 5 m wide canvas find length of canvas used.​

Answer 1

$\bf\large{\underline{Question:-}}$

A conical tent with base radius 7m and 24m is made from 5 m wide canvas find length of canvas used.

$\bf\large{\underline{Given:-}}$

• Radius = 7m
• Height = 24m
• width of canvas=5m

$\bf\large{\underline{To\:find:-}}$

• Length of the canvas used =?

$\bf\large{\underline{Solution:-}}$

formula used

$\tt\star l^2=r^2+h^2\\\tt\star C.s.a=πrl\\\tt\star Area\:of\: rectangle=l×b$

Using Pythagoras Theorem : -

$\tt→ L^2=r^2=h^2\\\tt→ L^2=7^2+h^2\\\tt→ L^2=49+576\\\tt→L^2=625\\\tt→ L=\sqrt625\\\tt→ L=25m$

Now,

Curved surface area = πrl

So,

$\tt→ C.s.a= πrl\\\tt→ C.s.a=\frac{22}{7}×7×25\\\tt→ c.s.a=22×25\\\tt→ c.s.a=550m$

width of canvas = 5m (given)

$\tt→ l×b=C.s.a\\\tt→ l×5=550\\\tt→ l=\frac{550}{5}\\\tt→ l=110mt$

Answer 2

Answer:

See the attachment

Hope this helps

Step-by-step explanation:

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