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Lera25 [3.4K]
3 years ago
10

20. what us the area of the figure:

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
8 0
If the angle in B is 45º, that means the angle in A is also going to be 45º, considering it's a right triangle, so AC and BC are they have the same length.
Then using Pythagoras, you'll get that AC^{2} + BC^{2} equals AB^{2} .
Now, you know that AC=BC and that AB=24.
So you'll get 2AC^{2} =24^2 . You do the square root in both sides and you get that 2AC=24 and AC=12.

Now that you know that both AC and BC equal 12, you can find the area by just multiplying them and then diving them by 2. (The formula for the area of a triangle is half base multiplied by height, and in a right triangle, if a cathetus is the base, the other cathetus<span> will be the height)

And so the area is equal to 72.</span>
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How many numbers between 1 and 40 (inclusive) meet both of the conditions given in the statements below? Statement 1: The number
GaryK [48]

Answer:

The answer to your question is three numbers

Step-by-step explanation:

Data

Numbers between 1 and 40

-Divisible by 2

-Prime numbers its digits.

Process

1.- Write all the numbers divisible by 2 between 1 and 40

    2   4   6   8   10  12  14  16  18  20  22 24  26  28  30  32  34  36  38

2.- Look for the numbers whose digits are prime numbers

    2                                                      22                           32

3.- Conclusion

three numbers 2, 22 and 32

6 0
2 years ago
Sales Hester sells televisions. She earns a fixed amount for each television and an additional $20 if the buyer gets an extended
Butoxors [25]

Answer:

$80

Step-by-step explanation:

15(x+20) = 1500

15x + 300 = 1500

Subtract 300 from each side

15x = 1200

Divide each side by 15

x = 80

8 0
2 years ago
Rosalie and Emmet are having a disagreement. Rosalie thinks a line can have a line of symmetry, while Emmet
nikklg [1K]

A line totally can have a line of symmetry. while it does not have width (therefore cannot put the line of symmetry through its "width"), it does have a length like any other shape. If we take a 4 unit line, we could put the line of symmetry at the 2 unit mark.

^sorry, im rushing a bit so you might have to paraphrase !

5 0
3 years ago
Read 2 more answers
Find the surface area of the triangular prism.
alisha [4.7K]

Answer:

169 cm^{2}

Step-by-step explanation:

Surface area (SA) = 2B + PH

                       SA = 2 (\frac{1}{2} x 9 x 6) + (7+7+9) 5

                             = 2 (27) + (23) 5

                             = 54 + 115

                        SA = 169 cm^{2}

6 0
2 years ago
What equation best represents the following sentence?
Tems11 [23]

Answer:

2n + 1 to find the first odd number.

Step-by-step explanation:

that is it

8 0
2 years ago
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