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dolphi86 [110]
1 year ago
9

Quadrilateral ABCD is cyclic. Identify what the missing angle measures must be.

Mathematics
1 answer:
SSSSS [86.1K]1 year ago
8 0

Check the picture below.

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a chord of 12cm long of 8cm is away from the of the circle what is the lenght of the chord which is 6cm away from the centre
lana66690 [7]

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

5 0
3 years ago
A ball is dropped from a height of 180 meters. The height of the ball can be represented by
Alex Ar [27]
I think it is C but it also could be B as well
6 0
3 years ago
What is the measure of ABC?
MaRussiya [10]

Answer:

D i think

Step-by-step explanation:

3 0
2 years ago
Y: 2x+3+9x+2<br> Simplify this
BARSIC [14]

Answer:

y=16x ??

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What is the answer to this 6+z/10 = -2 solve for z
PilotLPTM [1.2K]
6+z=10x-2
6+z=-20
Z=-20-6
Z=-26
Hope this helps!
7 0
3 years ago
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