D) The adjoining circle with centre O has a radius of 14 cm. ABCD is a square drawn inside the circle. Calculate the area of the shaded
region.
D
A
B
e) The shape alongside is one-quarter of a circle, with
radius of 14 cm. Find
(i) the length of arc AB
(ii) the perimeter of the figure
(iii) the area of the figure (iv) the area of AAOB
(v) the area of the shaded segment.
70 cm
Find the perimeter and the area of the adjoining shape.
35 cm
70 cm

Skill check questions rearrange the paragraphs below into the correct sequence. that's because engineers on the ultraclean project have invented a self-cleaning, antibacterial metal surface that repels water with an intricate layer of laser-engraved valleys. when it rains, the lotus does not become damp; the water simply trickles off in fat droplets, taking any bugs and dirt with it. the drudgery may not be around much longer, however, if a team of italian scientists has anything to do with it “it's simply an amazing plant,” concluded professor luca romoli, leader of the project, “and we've succeeded in mimicking it. magnifico! ” few tasks in life hold less joy than scrubbing the ghost of somebody else’s porridge from a saucepan. the starting point for the research was the leaves of the lotus flower.

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