Question

Mayank made a bird-bath for his garden
in the shape of a cylinder with a hemispherical
depression at one end (see Fig. 13.9). The height of
the cylinder is 1.45 m and its radius is 30 cm. Find the
toal surface area of the bird-bath. (Take T =
22/7​

Answer 1

Answer:

open this question at TEACHOO

Step-by-step explanation:

ITS A PERFECT SITE FOR ALL SOLUTIONS..

I GOT FULL MARKS IN MY EXAM WITH THEIR HELP .. EXPLANATION IS ALSO THERE

Answer 2

Let h be height of cylinder and ,r the common radius of cylinder and hemisphere.

Total, surface area of bird- bath

= CSA of cylinder + CSA of hemisphere

$\bf = 2πrh +2πr² \\ \\ \bf </p><p>= 2πrh+2πr²=2πr(r+h) \\ \\ \bf </p><p>= 2× \frac {22}{7} ×30(145+30) cm²</p><p>\\ \\ \bf =33000cm² \\ \\ \bf 3.3m²$