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3 years ago

14

Which of the following is a validation of congruency between two polygons?

2 answers:

kompoz [17]3 years ago

8 0

Answer:

The correct answer is:

C) if by applying rigid motions you can make them coincide

Step-by-step explanation:

Two polygons are said to be congruent or identical in form, if they have exactly the same size and shape or if their corresponding angles and sides are also equal.

When a rigid motion like - reflection, rotation and translation is applied on the polygons and they maintain the same length and shape then, they are called congruent.

AlladinOne [14]3 years ago

6 0

Answer:

Option C is the correct option

if by applying rigid motions you can make them coincide

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To create an entry code you must choose the first three letters and three single digit numbers how many different entry code can

Dmitry_Shevchenko [17]

Answer:

9

Step-by-step explanation:

3*3=9

ABC and 123

A1 B1 C1 A2 B2 C2 A3 B3 C3

7 0

3 years ago

Select the correct solution set. 50 ≥ 15x

Leviafan [203]

50 > = 15x....divide both sides by 15
50/15 > = x
10/3 > = x or x < = 10/3

so the correct solution set is : { x | x < = 10/3}...its the 2nd one

6 0

4 years ago

Read 2 more answers

What is the radius of a hemisphere with a volume of 757 cm", to the nearest tenth of

Nataliya [291]

Answer:

r = 7.1 cm

Step-by-step explanation:

Given the following data;

Volume of hemisphere = 757 cm³

To find the radius of the hemisphere;

Mathematically, the volume of a hemisphere is given by the formula;

Volume of hemisphere = ⅔πr³

Where, r is the radius of the hemisphere.

π = 22/7

Substituting into the formula, we have;

757 = ⅔πr³

Cross-multiplying, we have;

757 * 3 = 2πr³

2271 = 2*22/7*r³

2271 = 44/7*r³

Cross-multiplying, we have;

2271 * 7 = 44r³

15897 = 44r³

r³ = 15897/44

r³ = 361.30

Taking the cube root of both sides, we have;

r = 7.1223

To the nearest tenth of a centimeter;

r = 7.1 cm

7 0

3 years ago

Need help with a math question

Mekhanik [1.2K]

Answer:

$z =3\sqrt{13}$

Step-by-step explanation:

In the figure you can identify up to 3 straight triangles.

To solve the problem, write the Pythagorean theorem for each triangle.

<em>Triangle 1</em>

$13^2 = z^2 + x^2$

<em>Triangle 2</em>

$z^2 = y^2 + 9^2$

<em>Triangle 3</em>

$x^2 = y^2 + 4^2$

Now substitute equation 2 and equation 3 in equation 1 and solve for y.

$13^2 = y^2 + 9^2 + y^2 + 4^2$

$13^2 = 2y^2 + 9^2 + 4^2$

$169 = 2y^2 + 81 + 16$

$2y^2 =72$

$y^2 =36$

$y =6$

substitute the value of y in the second equation and solve for z

$z^2 = 6^2 + 9^2$

$z^2 = 36 + 81$

$z^2 = 117$

$z = \sqrt{117}$

$z =3\sqrt{13}$

5 0

3 years ago

Please help will mark brainiest!!!!!!!!!

Lorico [155]

1. Rational. It is non-terminating but repeating.

2. Irrational. It is non-terminating, non-repeating

3. Irrational. π is irrational

4. Rational. √49 is 7

5. Irrational. 22 is not a square.

4 0

4 years ago