Answer:
The first option is the correct option
Step-by-step explanation:
From the question the slope AC is evaluated as


And the slope of line CB is mathematically evaluated as


Now for lines that are perpendicular to each other then the product of their slope should be equal to -1
So if

Then

i,e
![[\frac{b}{a+ c} ] [\frac{b}{a-c} ] = -1](https://tex.z-dn.net/?f=%5B%5Cfrac%7Bb%7D%7Ba%2B%20c%7D%20%5D%20%5B%5Cfrac%7Bb%7D%7Ba-c%7D%20%5D%20%3D%20-1)
Is that dash supposed to be a minus or no
Answer: The area of the mirror is 113.14 sq. inches [approx.].
Step-by-step explanation: Given that a circular can till 375 ft² of land in 15 min.
We are to find the area of the mirror in square inches.
The AREA of a circle with radius 'r' units is given by

The diameter of the circular mirror is 12 inches, so the radius of the mirror will be

Therefore, the area of the circular mirror is
![A=\pi r^2=\frac{22}{7}\times 6^2=\dfrac{22\times 36}{7}=113.14~\textup{sq inches}~\textup{[approx.]}](https://tex.z-dn.net/?f=A%3D%5Cpi%20r%5E2%3D%5Cfrac%7B22%7D%7B7%7D%5Ctimes%206%5E2%3D%5Cdfrac%7B22%5Ctimes%2036%7D%7B7%7D%3D113.14~%5Ctextup%7Bsq%20inches%7D~%5Ctextup%7B%5Bapprox.%5D%7D)
Thus, the area of the mirror is 113.14 sq. inches [approx.].
.10.04987562
just use the first 2-3 numbers or if u want too write it all out like this.