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horsena [70]
3 years ago
10

What does CPCTC mean in Geometry AND when it is used?

Mathematics
1 answer:
anzhelika [568]3 years ago
6 0
CPCTC?
Corresponding Parts of Congruent Triangles that are congruent

When?
Used when you are trying to prove that 2 triangles, sides, or angles are the same.
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What is -0.75 - 0.4 simplified
anzhelika [568]

Answer:

-1.15

Step-by-step explanation:

Subtract  0.4  from  − 0.75 .

3 0
2 years ago
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Without using a calculator, order the following numbers from least to greatest . 5 sqrt(14) 4
Flura [38]

Answer:

.5, sqrt 14, 4

Step-by-step explanation:

.5, 3.7416, 4

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2 years ago
In the figure below, find the exact value of y. (Do not approximate your answer.)
e-lub [12.9K]

The exact value of the y in the similar right triangle is 2.2360679775 units

<h3 /><h3>How to find the side of a triangle?</h3>

The triangles are similar.

Similar triangles have corresponding sides of equal ratio.

The corresponding angles of similar triangle are equal.

Therefore, using similar ratio,

y / 5 = 1 / y

cross multiply

y × y = 5 × 1

y² = 5

square root both sides

y = √5

Therefore,

y = 2.2360679775 units

learn more on triangles here: brainly.com/question/2773823

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8 0
2 years ago
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9.3488 rounded to the nearest tenth?
Tanya [424]

Note the place values:

9 ones place value

.  (decimal point)

3 tenths place value

4 hundredths place value

8 thousandths place value

8 ten thousandths place value

You are solving for the tenth place value. Look at the digit directly right of the tenths place value. It is the hundredths place value, which is 4.

Note that when rounding, if the number next to what you are solving for, has a value of 5 or greater, you round up. If it has a value of 4 and less, you round down. In this case, it is a 4, so round down.

9.3488 rounded to the nearest tenth is 9.3

9.3 is your answer.

4 0
3 years ago
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What is the slope shown below?
UkoKoshka [18]

Answer:

A

Step-by-step explanation:

To calculate the slope m use the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (- 3, - 7) and (x₂, y₂ ) = (9, 1) ← 2 points on the line

m = \frac{1+7}{9+3} = \frac{8}{12} = \frac{2}{3}

7 0
3 years ago
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