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3 years ago

What does CPCTC represent and when would you use it?

1 answer:

kramer3 years ago

8 0

Answer:This is the anwser, CPCTC represents , corresponding parts of congruent triangles are congruent. CPCTC is commonly used at or near the end of a proof which asks the student to show the two sides or angles are congruent.

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Please solve with explanation! 30 points

Alex787 [66]

Answer:

Step-by-step explanation:

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3 0

3 years ago

Read 2 more answers

What is the area of a triangle whose sides are 10 meters, 14 meters, and 20 meters long? A.65 m2 b.100 m2 c. 70 m2 d.50 m2

denpristay [2]

Answer: Option A. 65 m^2

Solution:

Sides: a=10 m, b=14 m, c=20 m

Area: A=?

A=sqrt [p(p-a)(p-b)(p-c) ]

Semi-perimeter: p=(a+b+c)/2

p=(10 m+14 m+20 m)/2

p=(44 m)/2

p=22 m

A=sqrt [ (22 m)(22 m-10 m)(22 m-14 m)(22 m-20 m)]

A=sqrt [ (22 m)(12 m)(8 m)(2 m) ]

A=sqrt [ 4,224 m^4 ]

A=64.99230723 m^2

A=65 m^2

7 0

3 years ago

Read 2 more answers

Find the area of the shaded region.

earnstyle [38]

There are four parts of a circle, so you have to find out the area of the circle:-

10 cm=Radius

$10^{2}$ =100

$\pi$ =3.14

3.14*100=314 $cm^{2}$

Now, find the area of the square box:-

Since half the side of the square is 10 cm, the total length of one side is 2*10 which is 20 cm.

Area=S*S

=20*20=400 $cm^{2}$

Now subtract the area of the box from the area of the square:-

400-314= 86 $cm^{2}$

That is the area of the shaded part.

Happy to help you!

8 0

3 years ago

-3^2 - 1^2 -(-2)^3+(-1)^2-(-1-5)^3

Ilia_Sergeevich [38]

Answer: 215

Step-by-step explanation:

4 0

4 years ago

For the following normal distribution, give the x-values of the inflection points of the curve (the points where the curve's con

3241004551 [841]

Answer:

The x-values of the inflection points of the curve are x = -52 and x = 52.

Step-by-step explanation:

Suppose we have a normal curve with mean $\mu$ and standard deviation $\sigma$

The x-values of the inflection points of the curve are $x = \mu - \sigma$ and $x = \mu + \sigma$

x ~ N(0, 52)

This means that $\mu = 0, \sigma = 52$

$x = 0 - 52 = -52$

$x = 0 + 52 = 52$

The x-values of the inflection points of the curve are x = -52 and x = 52.

6 0

3 years ago