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xxTIMURxx [149]
4 years ago
5

HELP ME PLEASE!!! MATHEMATICS

Mathematics
1 answer:
sukhopar [10]4 years ago
5 0
By Pythagoras  AB^2 = 12^2 - 6^2 =  108

AB = sqrt 108 = 10.39 to nearest hundredth

The perpendicular from M to DC will be parallel and equal to AB so  it = 10.39.

Also  AB^2 = CB * DB

108  =  6 * DB
DB = 108/6  = 18
so DC = 18-6 = 12

MD^2 = (1/2*12)^2 + 108  =   144

so MD = 12
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