42cm2
3cm2
21cm2
24cm2
12cm2
Correct answer is C
Length of arc = θ360 x 2πr = 6
θ x 2πr = 360 x 6
θ = 360×62πr
Area of the sector = θ360 x πr2
360×62πr x 1360 x πr2 = r
= 3 x 7
= 21cm2
In the figure, GHIJKLMN is a cube of side a. Find the length of HN. ...
Evaluate 0.0090.012, leaving your answer in standard form....
Find the two values of y which satisfy the simultaneous equation 3x + y = 8, x2 + xy = 6....
In the figure, PQRS is a rectangle. If the shaded area is 72 sq. cm, find h. ...
If (x + 2) and (x - 1) are factors of the expression Lx3+2kx2+24, find the values of L...
Make c the subject of formula v = 1 - a5(b + 3c7)...
The figure is a solid with the trapezium PQRS as its uniform cross-section. Find its volume ...