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zaharov [31]
3 years ago
12

It’s a quadrilateral parallelogram. Solve for x

Mathematics
1 answer:
yan [13]3 years ago
4 0
4 sided shapes have internal angles that MUST add up to 360 degrees, so add all four angles to get 360 (opposite angles are equal) so:
8x + 19 + 8x + 19 + 21x - 13 + 21x - 13 = 360
Collect like terms so
58x + 12 = 360
58x = 348
x = 6
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Find the area of this shape.
mart [117]

Answer:

shape AREA= 35cm^2

Step-by-step explanation:

you should know that this shape is a combination of triangle and trapezoid. therefore you have to find the area of each shape and add them.

A=h/2(b1 + b2) for trapezoid

A=2/2((4+4)+4)

A=1*12

A=12cm^2

A=bh/2. for TRIANGLE

A=1/2((4+4)*5.75)

A=1/2(46)

A=23cm^2

shape AREA= triangle AREA + trapezoid AREA

shape AREA=12cm^2 + 23cm^2

shape AREA= 35cm^2

5 0
3 years ago
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rosijanka [135]

Answer:

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8 0
4 years ago
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Nadia says the hypotenuse of this right triangle has a length of 73 because the Pythagorean theorem states that (28 + 45) square
masya89 [10]

Answer:

C :She is incorrect because she should have squared each leg length and then found the sum

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4 years ago
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Find the least common multiple.
Pie

Answer:

C

Step-by-step explanation:

When we speak about the least common multiple, we are talking about the lowest number in which these given values are a factor of

Firstly, I would like to consider the number parts only I.e 3, 12 and 15. Using the long division l.c.m method, the lowest common multiple of these is 60.

In the options, there are two options carrying 60. How do we know which is correct? We simply look at the alphabets and try the long division again.

The highest powers of x and y is the 3rd power and hence gives their lowest common multiple.

Please check the attachment for the long division.

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3 years ago
Given m||n, find the value of x and y
katrin2010 [14]

Answer:

x = 145, y = 35

<em>Brainliest, please!</em>

Step-by-step explanation:

y = 35 degrees because it and the original 35 degree angle are alternate interior angles. Alternate interior angles are congruent, or the same.

x is supplementary to y. x + y = 180. x + 35 = 180. x = 180 - 35. x = 145

3 0
3 years ago
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