Answer:
79 degrees
Step-by-step explanation:
This is because <CBF is equivalent to <GFI
So, we know two angles in that triangle; 55 and 46.
By adding these together we get 101. In a triangle, the angles all add up to 180.
So we must subtract 101 from 180 and we will have that remaining angle.
The middle row is long on one side and short in the other side which is the shape of a rectangle.
The net is a rectangular prism
You add 386 +193 them multiple 4
Answer:
The length of the chord is 16 cm
Step-by-step explanation:
Mathematically, a line from the center of the circle to a chord divides the chord into 2 equal portions
From the first part of the question, we can get the radius of the circle
The radius form the hypotenuse, the two-portions of the chord (12/2 = 6 cm) and the distance from the center to the chord forms the other side of the triangle
Thus, by Pythagoras’ theorem; the square of the hypotenuse equals the sum of the squares of the two other sides
Thus,
r^2 = 8^2 + 6^2
r^2= 64 + 36
r^2 = 100
r = 10 cm
Now, we want to get a chord length which is 6 cm away from the circle center
let the half-portion that forms the right triangle be c
Using Pythagoras’ theorem;
10^2 = 6^2 + c^2
c^2 = 100-36
c^2 = 64
c = 8
The full
length of the chord is 2 * 8 = 16 cm
