Question

please answer with full explanation​

Answer 1

Answers :-

(7) -16

(8) √3 , 3

(9) 2772m³

Explanation:-

solution:- (9)

External Diameter = 16 m

External Radius R = 16/2 = 8 m

Internal Diameter = 2 m

Internal Radius r = 2/2 = 1 m

Height = length = h = 14 m =

Volume Of Material Of Pipe = " (R² - r?) * h

= (22/7) ( 82 - 13) * 14

= = 44 * 63

= 2,772 m3

Solution for 7 & 8 question is there in attachments.

Thankyou

Answer 2

Explanation:

I hope answer is helpful to us