All categories

3 years ago

Find x in the given figure. (The vertical chord is a diameter.)

Mathematics

1 answer:

victus00 [196]3 years ago

3 0

Step-by-step explanation:

Let the center of the circle be point O.

A right-angled triangle can be drawn using one side of chord X as the base and its height up to point O.

The height of the triangle will be 4 - 2 = 2, and the hypotenuse is the radius of the circle, which is 4.

By Pythagoras' Theorem, 2^2 + (X/2)^2 = 4^2.

So (X/2)^2 = 14, and X = 2√14.

You might be interested in

The daily cost of hiring an electrician,Y, to work x hours on an electric job can be modeled using a linear function. The electr

Artyom0805 [142]

B is the answer to your question

4 0

3 years ago

Read 2 more answers

2 square numbers that add up 125

drek231 [11]

Answer:

There are two answers, firstly 1*125. Then, factoring 125 as a product of primes, you get 5^3. The only two numbers you can get out of 5^3 other than 125 are 5^1 = 5 and 5^2 = 25. So there's your other answer: 5*25.

6 0

3 years ago

Need help ASAP please

laila [671]

Im thinking c, im sorry if wrong

4 0

3 years ago

Write the equation of a line that is parallel to 4x-2y=3 and is passing through the point (2,1)

Temka [501]

Answer:

y= 2x -3

Step-by-step explanation:

Let's rewrite the given equation into the form of y=mx+c, so that we can find the gradient of the line. In this form, m (coefficient of x) is the gradient.

4x -2y= 3

2y= 4x -3

Divide by 2 throughout:

$y = 2x - 1 \frac{1}{2}$

Thus the gradient is 2.

Parallel lines have the same gradient thus the line would also have a gradient of 2.

Substitute m=2 into the equation:

y= 2x +c

To find the value of c, substitute a pair of coordinates.

When x=2, y=1,

1= 2(2) +c

1= 4 +c

c= 1 -4

c= -3

Thus, the equation of the line is y= 2x -3.

5 0

3 years ago

What type of triangle do i have if the angles are:15, 10,155

xenn [34]

Obtuse, accute, obtuse, acute, A.

6 0

3 years ago