Answer:
From the basics of algebra,
a triangle subtended to the center of a circle from the circumference is always isosceles
since the Central angle is 60 and the triangle is isosceles, the other angles are,
meaning that the triangle is equilateral.
all the other angles are 60.
the radius of the circle is the length of the triangles side,
ie 6cm
Option B: is the correct answer.
Explanation:
The exponential equation is
If , then
Thus, the equation becomes
Applying log rule, and thus the equation becomes
Since, we know that, , using this we get,
Hence, the logarithmic equation which is equivalent to the exponential equation is
Thus, Option B is the correct answer.