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Westkost [7]
3 years ago
15

HELP! Find the area of a square with a diagonal of length 12.

Mathematics
2 answers:
natima [27]3 years ago
7 0

Answer:

72 square units

Step-by-step explanation:

you can use the Pythagorean Theorem; because we're dealing with a square then each side can be assigned the same variable, let's use 'a'

a² + a² = 12²

2a² = 144

a² = 72

a = \sqrt{72}

\sqrt{72} can be simplied as \sqrt{9}·\sqrt{4}·\sqrt{2} which is 3·2·\sqrt{2}

each side has a length of 6\sqrt{2}

A = (6\sqrt{2})² which is 6·6·2 or 72

Rina8888 [55]3 years ago
5 0

Answer:

6

Step-by-step explanation:

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First, think of your places. You have the ones places, tens places, hundreds places, and so on. 

The first number starting from the right is the ones, and as you keep going left, the value of each given digit becomes higher.

Since 5 is in the ones place, its value would be just 5. If it were in the tens place, it would be 50. If it were in the hundreds place, it would be 500, and so on. 

Think of it this way;

Ones is just one. If a number is in the 'ones' place, its value would be a single digit. If it were in the tens place, its value would be two digits. 
That's how it would be for each place going left. 
Every number you move to the left, its value gains a one.

So here's an example: 
5555

The value of 5 in the ones place "5555" is simply 5.

In the tens place, you end up adding one zero, so the value of the second five to the left would be, "50"

So with that said, the value of the digit 5 in the number 75 is <em>5.

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Haha, hope this cleared up any confusion, and have a <em>wonderful </em>day! :)<em>
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7 0
3 years ago
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Please answer right away
fenix001 [56]

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6 0
3 years ago
5x-6=29. What does x equal
anastassius [24]

Answer:

Solution given:

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Aliun [14]

Answer:

B. 90^o

Step-by-step explanation:

We have been given a protractor and we are asked to find the measure of angle D.

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Answer:

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