Answer:

Step-by-step explanation:
Since the chord is a tangent to the smaller circle, it will meet the radius of the smaller circle at right angle.
Let
be the length of half of the chord. See diagram in attachment.
Then from Pythagoras Theorem,




We take the positive square root of both sides to obtain,

The length of the chord is

The correct answer is A
Radius of circle would be R=a×✓2/2=√2 and Circle area is then A=R^2π=✓2^2π=2π or 2×3.14=6.28...
Answer:
x = 81
Step-by-step explanation:
using the rule of logarithms
x = n ⇒ x = 
given
x = 4 , then
x =
= 81
(h,k) is the vertex
b/2a is the line of symmetry
a > 0 parabola opens upward, vertex is a minimum
a < 0 parabola opens downward, vertex is a maximum
My first answer was deleted lolol
Answer:
the measure of <6 is 77 degrees
x + 13 = 90
x = 77
Step-by-step explanation: