Answer:
The answer is 68°.
Step-by-step explanation:
Following the arc length equation:
s = r * θ where s is arc length, r is radius of the circle, and θ is the angle in radians.
12 is the Radius of the Circle and therefore solve for θ:
θ =
=
=
rad. or radians
Now, convert the radians to degrees:
= 68°
The error is in the first step. It should be (+8 plus or minus the square root of the quantity eight squared minus four times one times seven ). This is because "b" is -8 so -b is -(-8) = +8
You loser
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12 x 12 = 144
24 x 6 = 144
144 + 144 = 288 cm sqaured