avahrhey24
19.09.2021 •
Mathematics
Show me how to solve 11(5c-1)-18=53c+11
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Ответ:
The answer should be : 55c+29 , not 55c+11
Step-by-step explanation:
minus + minus = PLUS
Ответ:
now, as we know that each angle in a rectangle is right angle.
thus we have a right angled triangle.
now, we can apply pythagoras theorum.
a^2 = 54^2 + 72^2
= 2916 + 5184
=8100
thus, a^2 = 8100
thus, a = 90.
Thus the diagonal is 90metres.