Using the formula of the area of the triangle, we have:
A=b*h/2 (A:area, b: base, h: height)
17.39= b*(3.7)/2 (Replacing)
17.39= b*1.85 (Dividing)
17.39/1.85 = b (Dividing by 1.85 on both sides of the equation)
9.4= b (Dividing)
The answer is 9.4
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