Which side lengths form a triangle that is similar to triangle ABCA( 30, 21, 45

B( 20, 14, 28

C( 40, 30, 60

D( 17, 20, 25

Answers

Answer 1

Answer:

The side lengths form a triangle that is similar to triangle ABC will be 30, 21, and 45. Option A is correct.

What is the triangle?

In terms of geometry, a triangle is a three-sided polygon with three edges and three vertices. The triangle's interior angles add up to 180°.

It is found that the sides of the triangle are,

AB=10

BC=7

CA=15

In order for the triangle to similar the ratio of their sides is equal.

AB:BC: CA = 10:7:15

The ratio is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.

AB:BC: CA = 10×3:7×3:15×3

AB:BC: CA =30, 21, 45

The ratio of the triangle for the given condition must be the same.

Thus, the side lengths that form a triangle that is similar to triangle ABC will be 30, 21, and 45. Option A is correct.

Learn more about the triangle here:

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Answer 2

Answer: A.
10x3=30
15x3=45
7x3=21
All sides have increased in size by 3 times.

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Bulletin board is 8 feet long and 5 feet wide. How many feet of border does it need?

Answers

8 × 5 = 40

So the border has to be 40 feet.

Hope this helps!

Work:

length × width = answer

length = 8
width = 5
answer = 40

Well, all you would need to do is multiply 8 feet by 5 feet, (length times width), which would give you the area and amount of borders in feet needed, which is 40 feet in total.
I hope I helped, and PLEASE choose my answer as the Brainliest!
Thank you! =D

Round 2,605 to the nearest hundred

Answers

Answer:

2600

Step-by-step explanation:

Given : 2,605

To find : Rounded to the nearest hundred .

Solution: We have given that 2,605

We can write it as 2,605

Step 1 : Identify the hundred digit 6 in 2,605

Step 2: Identify the next smallest place value 0 in 2,605

Step 2: We can the digit less five, so it would be rounded down

Step 3 : The hundred 6 remain same and Every digit after becomes a zero.

Step 5 : Number become 2600.

Therefore, 2600

Look at the right of the number you want to round then if its greater than 5 round the number that you originally wanted to round. Round it up or down. In this number, 0 is less than 5 so 6 stays the same. all the numbers after 6 turn into zeroes.

Your answer is: 2,600

Amber is using 3 ft by14 ft sheets or wallpaper to cover a rectangular wall that has an area of 240ft^2. What is the least number of sheets of wallpaper she will need?

Answers

3ft x 14ft = 42ft^2

240ft^2
----------
42ft^2

5.7

So she needs 6 sheets.

If 596 people voted in the election, how many were over 65 years old?

Answers

Answer:

There were 149 voters over 65 years.

Step-by-step explanation:

In the picture attached, we can see that 25% of the voters were over 65 years.

25% of 596 voters is computed as follows:

total number of voters * desired percentage / 100

596*25/100 = 149

596*25%=149
149 people over the age of 65 years old voted

What is the sum of 2 and 3

Answers

6. Hope this hellpppp.

2 + 3 is 5.
Think of it like this:
If you have two candies, then are given three more candies, then count them all up, you will realize that you have 5 candies.

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