Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
Secondary 1 | Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
Please help
Date Posted: 5 years ago
Views: 294
Volume of Cylinder is (pi x r^2 x height)
(i)
(pi x 2.5^2 x 8.9) - (pi x 2.1^2 x 8.9) = Ans
(ii) Convert the volume into the weight.
First we change the Answer from (i) into m^3
1cm = 0.01m [1cm cubed is still 1, 0.01 cubed will become 0.000001]
1 cm^3 = 0.000001 m^3
you may divide it by 1 000 000
Multiply that by 2700 to convert it into the weight (kg). Multiply that by 8$ to get the cost.
(i)
(pi x 2.5^2 x 8.9) - (pi x 2.1^2 x 8.9) = Ans
(ii) Convert the volume into the weight.
First we change the Answer from (i) into m^3
1cm = 0.01m [1cm cubed is still 1, 0.01 cubed will become 0.000001]
1 cm^3 = 0.000001 m^3
you may divide it by 1 000 000
Multiply that by 2700 to convert it into the weight (kg). Multiply that by 8$ to get the cost.
See 1 Answer
360 Tutoring Program