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a) 3

b) 24

Step-by-step explanation:

Two right angle triangles that share two lines have a common angle.

Because of this the ratio of dimensions will remain the same, since this inner angle cannot change

This means we can look at the ratio of the lengths (questions calls it widths)

convention is to go from big to small.  The easiest way is to use the large side and divide by the small

RATIO :  =

With this ratio we can convert a small dimension into the relative big one.

W = w * R = 8 * 3 = 24m

EXTRA: Easyier way is to just realize the ratio of both dims must be equal

the answer is a

step-by-step explanation:

because if you put 1 in to the square root of x it equals 300.

b

step-by-step explanation:

it have 5 sides and 5 identicle angle.the rest does not have the same property as b.

brainliest