All categories

2 years ago

The diagram show a circle centre 0. write down the mathematical name of

Mathematics

1 answer:

Ksivusya [100]2 years ago

5 0

Answer:

(a) sector

(b) chord

Step-by-step explanation:

<h3>sector: a sector in a circle is enclosed by two radii and an arc.</h3>

<h3>chord: this is a straight line that divides the circle into two unequal parts</h3>

<h3>tangent: a tangent touches a circle in only one point without entering inside the circle.</h3>

You might be interested in

What is the answer for -8=s+6

9966 [12]

Answer:

s=-14

Step-by-step explanation:

-8 = s+6 Given

-14 = s Subtract 6 from both sides

7 0

3 years ago

In parallelogram ABCD, AD = 12 in, m∠C = 46º, m∠DBA = 72º. Find the area of ABCD

dmitriy555 [2]

Answer:

The area of parallelogram ABCD is $78.42 \mathrm{in}^{2}$

Explanation:

Given:

AD = 12 in

$m \angle C=46^{\circ}$

$m \angle D B A=72^{\circ}$

To Find:

The area of parallelogram ABCD=?

Solution:

When we construct the parallelogram with the given data, we get a parallelogram formed by 12 cm as one side and an angle with 46 degrees.

The area of the parallelogram can be calculated by $a b * \sin (a n g l e)$

Substituting the value of a=12 we have

$\text { Area of parallelogram }=12 * \text { bsin } 46$

<u>To find the value of b, </u>

We know that area of a triangle can be expressed as,

$\text { Area of triangle }=(A b / 2) \sin (\text {angle})$

So,

$(12 * B D / 2) * \sin 46=(A B * B D / 2) * \sin 72$

Cancelling BD and 2 on both sides we get,

$12 * \sin 46=A B * \sin 72$

$A B=12 * \frac{\sin 46}{\sin 72}$

Therefore,

$b=\frac{12 \sin 46}{\sin 72}$

Substituting the value of b,

$=12 *\left(\frac{12 \sin 46}{\sin 72}\right) * \sin 46$

=78.42

So the area of the parallelogram is $78.42 \mathrm{in}^{2}$

6 0

3 years ago

Read 2 more answers

From a cuboidal cardboard box of dimensions 80cm×40cm×15cm,6 circles of radius 7 cm were cut from the front face.Find the surfac

Irina-Kira [14]

Answer:

9076 cm²

Hope my answer helped you

6 0

2 years ago

Need help with this question thanks :)

Fantom [35]

Answer:

Omar could invite 19 friends.

Step-by-step explanation:

the equation for this word problem would be

5x+30=125

subract 30 from both sides

5x=95

divide both sides by 5

x=19

8 0

3 years ago

Read 2 more answers

What is the greatest common factor of 44 and 47?

Veseljchak [2.6K]

Answer:

Step-by-step explanation:

To get the GCF of 44 and 47, factor each value,then we choose copies of factors and multiply them.

4 0

3 years ago