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3 years ago

Find the perimeter of the triangle to the nearest unit A(-2,3) B(2,1) C(-2,1)

Mathematics

1 answer:

siniylev [52]3 years ago

7 0

Answer:

10 units

Step-by-step explanation:

We can find the length of the hypotenuse of this right triangle using the Pythagorean theorem.

AB² = AC² +BC²

AB² = 2² +4² = 20

AB = √20 ≈ 4.47

Then the perimeter is ...

P = AB +BC +CA = 4.47 +4 +2 = 10.47

P ≈ 10 units

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~please only answer if you know for sure~

NARA [144]

JKL is similar to PQR

so they want PR

JKL is similar to PQR

So PR is similar to JL

And they also give us the sides KL and QR

JKL is similar to PQR

Both of those sides are similar, so we can form a proportion.

$\sf { \frac{PR}{JL} = \frac{QR}{KL} }$

Plug in the numbers:

$\sf { \frac{PR}{6} = \frac{15}{9} }$

Cross multiply:

$\sf{ PR \times 9 = 6 \times 15}$

Isolate PR

$\sf{ PR = \frac{6 \times 15}{9}}$

Simplify it

$\sf{ PR = 10}$

So your final answer is

$\boxed{\bf{10 centimeters}}$

6 0

4 years ago

Read 2 more answers

Kari is baking cookies. She uses 15 cups of flour to bake 6 batches of cookies. How many cups of flour does she use for each bat

Anna [14]

Answer:

Step-oby-step explanation:

6 0

3 years ago

8/11 x (5/9 - 1/6) ÷ 1 5/9

Oksana_A [137]

Answer:

28/165

Step-by-step explanation:

You always use the order of operations, and the order of operations says to solve parentheses first, so you would solve 5/9 - 1/6, and get 7/18.

You would do exponents next, if there were any, but there is not, so you move on to the next operation(s).

The next operations are multiplication and division. From left to right, multiplication is first, so you solve 8/11 x 7/18 and get 28/99. Then, there is a division problem to solve. The problem is 28/99 ÷ 15/9. If you solve that correctly, you will get the answer 28/165.

The next step would be to simplify 28/165, but it cannot be simplified, so you are left with the answer 28/165.

4 0

3 years ago

HELP ME, SOMEONE AND ANYONE I NEED YOUR HELP

MAVERICK [17]

Answer:

hope this helps

Step-by-step explanation:

x2=2 y2=3

8 0

3 years ago

A box has dimensions of 15 inches long, 3.1 feet wide, and 7 inches high. What is the volume of the box? The formula for the vol

Reil [10]

Answer:

3906 in inches

Step-by-step explanation:

convert 3.1 ft to inches and then multiply all.

3 0

4 years ago

Find the perimeter of the triangle to the nearest unit A(-2,3) B(2,1) C(-2,1)​

Find the perimeter of the triangle to the nearest unit A(-2,3) B(2,1) C(-2,1)