The length of an Australian flag is twice its width and the diagonal length is 45cm.
A. if x cm is the width of the flag, find the length in terms of x.
B. draw a diagram of the flag marking in the diagonal. mark the length and the width in terms of x.
C. use Pythagoras theorem to write an equation relating the lengths of the sides to the length of the diagonal.
D. solve the equation to find the dimensions of the Australian flag. round your answer to the nearest cm
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