A trapezium of parellel sides 10cm and 21cm and height 8cm is inscribed in a circle of radius 7cm. calculate the area of the region not covered by the trapezium.
π =\(\frac{22}{7}\)
A cone has a base radius of 8cm and height 11cm. calculate , correct to 2d.p, the curved surface area
In the diagram, \(\overline{PQ//RS}\) is a trapezium with QR//PS. U and T are points on \(\overline{PS}\) such that \(\overline{|PU|}\) = 5 cm,
\(\overline{|QU|}\) = 12 cm and ∠PUQ= ∠STR =90°. If the area of PQR = 20 cm\(^2\),
calculate, correct to the nearest whole number, the:
(a) perimeter; (b) area; of the trapezium
A rectangular pyramid has an area 24cm\(^2\) and height 7.5cm. Find its volume?
A cylinder, opened at one end, has a radius of 3.5cm and height 8cm. calculate the total surface area