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Mathematics, 17.05.2021 14:30 anonymous654

The masts for London's O2 (oxygen) Arena were held up during erection by wire ropes. The top of a mast, A,
is 106 m above the ground, and C is vertically below A.
The gradient of one wire rope, AB, is 1, and CD is 53 m.
a Find the gradient of AD.
b Find the length of BD.​

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The masts for London's O2 (oxygen) Arena were held up during erection by wire ropes. The top of a m...
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