Radius, r = 6 m
Height, h = 8 m
Slant height, l = \(\sqrt{r² + h²}\)
\(= \sqrt{(6)² + (8)²}\)
\(= \sqrt{36 + 64} \)
\(= \sqrt{100} \)
= 10 m
The curved surface area =\( \pi rl\)
= 3.14 × 6m × 10m
= 188.4 m2
Width of the tarpaulin = 3m
Area of the tarpaulin = 188.4 m2
∴ Area of the tarpaulin = width of the tarpaulin × length of the tarpaulin
188.4 m2 = 3 × length of the tarpaulin
\(⇒ \) Length of the tarpaulin = \(\frac{188.4 m^2}{3}\)
= 62.8 m
Extra length of the material = 20cm = \(\frac{20}{100}\)m = 0.2m
Actual length required = 62.8m + 0.2m = 63m
Thus, the required length of the tarpaulin is 63 m.
Use these adverbs to fill in the blanks in the sentences below.
awfully sorrowfully completely loftily carefully differently quickly nonchalantly
(i) The report must be read ________ so that performance can be improved.
(ii) At the interview, Sameer answered our questions _________, shrugging his shoulders.
(iii) We all behave _________ when we are tired or hungry.
(iv) The teacher shook her head ________ when Ravi lied to her.
(v) I ________ forgot about it.
(vi) When I complimented Revathi on her success, she just smiled ________ and turned away.
(vii) The President of the Company is ________ busy and will not be able to meet you.
(viii) I finished my work ________ so that I could go out to play