The radius and height of a solid cylinder is 8 cm and 14 ...
The radius and height of a solid cylinder is 8 cm and 14 cm respectively. Find, correct to two d.p the total surface area.
(Take π=227)
1,106.29cm2
1,016.29cm2
1,106.89cm2
1,206.27cm2
Correct answer is A
radius = 8cm , height = 14cm and π=227
total surface area of a solid cylinder = 2πrh+2πr^2 = 2πr( h + r )
2 \times \frac{22}{7} \times 8( 8 + 14)
2 \times \frac{22}{7} \times 8 \times 22
\frac{7744}{7}
= 1,106.29cm^2
The diagram is the graph of y = 6 + x - x^2. The graph intercepts the x- axis at P and R and the...
Factorize 2y2 - 15xy + 18x2...
An (n - 2)2 sided figure has n diagonals. Find the number n diagonals for 25-sided figure...
In the diagram, NR is a diameter, ∠MNR = x° and, ∠SRN = (5x + 20)°. Find the va...
The angle of elevation of a building from a measuring instrument placed on the ground is 30°. If...