If ED is tangent to circle H, find the value of x

x = 8

Step-by-step explanation:

Here, we want to find the value of x

According to the theorem;

45 = 1/2(147 - (7x-5))

90 = 147 -7x + 5

90 = -7x + 147

7x = 147-90

7x = 57

x = 57/7

x = 8.142 which is approximately 8

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2