Just flip your fraction around and your answer will be 10/11
A sector is the area bounded by two radii and the included arc.
To calculate for the area of the sector, you’ll use the formula A=n/360(pi)(radius)

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The n in the formula refers to the measure of the central angle in degrees.
The given data in the problem is in radians, convert it by multiplying 1.25 by

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Now input the converted value to the formula of finding the area of the sector.<span>
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The mass of the solution is 190 g - 120 g = 70 g. Thus, it's density is 70 g / 50 mL = 1.4 g/mL.
I would have loved to help but you didn’t attach the picture as far as I’m concerned or I don’t see it sorry ^^;;