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qwelly [4]
3 years ago
13

Find the perimeter of the isosceles trapezoid

Mathematics
2 answers:
Mumz [18]3 years ago
8 0
So to find the perimeter you have to find the length of the diagonal lines. The definition of isosceles means that the shape has two sides of equal length. So you’d solve for te missing length using the Pythagorean theorem. The difference between the top side and the bottom is 10, which means that each side of the 90 degree is 5. So on the bottom it is 5,12,5 for measurements, meaning that the middle is a square with two right triangles.

Solve using the Pythagorean theorem

a^2+b^2=c^2 with This you should get 9.43 (rounded) as your values.

Then just add up the side lengths.

2(9.43)+22+12, which gives a perimeter of 52.87 (rounded)

5^2+8^2=c^2
Genrish500 [490]3 years ago
4 0

Answer:

A =136 cm^2

Step-by-step explanation:

The area of a trapezoid is given by

A = 1/2 (b1+b2) *h  where b1 and b2 are the lengths of the bases and h is the height

A = 1/2( 22+12) *8

A = 1/2 ( 34)*8

A =136 cm^2

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Write the exponent form of this expression: n•n•n•s•s•s•2•2=
Anuta_ua [19.1K]

Answer:

n³ · s³ · 2²

Step-by-step explanation:

Hi!

An exponent is determined by the number of copies by any set number(n.)

I your case, all we have to do is count the number of each variable and number and that will be what the power(exponent) will be.

n: 3

s: 3

2: 2

So we will have n³ · s³ · 2² according to the piece of information shown above.

Thus, the answer to your question is \boxed{n^{3} \cdot s^{3} \cdot 2^{2}}.

Hope this helps!

5 0
3 years ago
Rewrite the equation of each circle in Standard Form. Then graph.
chubhunter [2.5K]

Answer:

(x + 5) ^ 2 + (y-0) ^ 2 = 2 ^ 2

Step-by-step explanation:

The standard form for the equation of a circumference is:

(x-a) ^ 2 + (y-b) ^ 2 = r ^ 2

Where:

(a, b) is the center of the circumference

r is the radius

In this problem we have the equation of the following circumference, and we want to convert it to the standard form:

x ^ 2 + y ^ 2 + 10x +21 = 0

The first thing we must do to transform this equation into the standard form is to use the square completion technique.

The steps are shown below:

1. Group all the same variables:

y ^ 2 + (x ^ 2 + 10x) = -21

2. Take the coefficient that accompanies the variable x. In this case the coefficient is 10. Then, divide by 2 and the result elevate it to the square.

We have:

\frac{10}{2} = 5\\\\(\frac{10}{2}) ^ 2 = 25

3. Add on both sides of the equality the term obtained in the previous step:

y ^ 2 + (x ^ 2 + 10x +25) = -21 +25\\\\y ^ 2 + (x ^ 2 + 10x +25) = 4

4. Factor the resulting expression, and you will get:

(x + 5) ^ 2 + y ^ 2 = 4

Write the equation in the standard form:

(x + 5) ^ 2 + (y-0) ^ 2 = 2 ^ 2

Then, the center is the point (5, 0) and the radius is r = 2.

Observe the attached image

8 0
3 years ago
Read 2 more answers
Plz help me I need your help badly plz help me with this question I need your help plz help me I’m begging you plz help me plz p
7nadin3 [17]
It is 255 cm^2

This is a very basic area problem. You should try refreshing on some of your multiplication and addition skills. Try reading patterns, maybe. Also learning geometric proofs is VITAL.
3 0
3 years ago
Read 2 more answers
Please help! Thank you!
viva [34]

Answer:

A

Step-by-step explanation: im not extremely sure about this one though but the x coordinate is nine away from every coordinate of defc and the way it goes left means that the x is negative, the y coordinates of defc prime is positive because it moves up from defc. hope this helps

4 0
3 years ago
Answer this only if you know please there’s people who answer just for points
Dimas [21]

The increase is 39 Degrees

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3 years ago
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