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defon
3 years ago
14

Caroline drew two triangles and used them to construct a rhombus with two acute angles and two obtuse angles. Which could be one

of the triangles she used? A triangle has angles 72 degrees, 62 degrees, and blank. A triangle has angles 75 degrees, 75 degrees, and blank. 2 sides are congruent. A triangle has angles 45 degrees, 45 degrees, and 90 degrees. 2 sides are congruent. A triangle has angles 30 degrees, 60 degrees, and 90 degrees.
Mathematics
1 answer:
Gala2k [10]3 years ago
8 0

Answer: the triangles marked 75 degrees and 45 degrees

Step-by-step explanation:

A rhombus has equal opposite obtuse angles with equal acute angles.

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Subtract.
Goryan [66]

Answer: the answer your looking for is

-5 7/10

Step-by-step explanation:

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3 years ago
Answer this please, thank you !
vesna_86 [32]

Answer:

m∠ADC=55°

Step-by-step explanation:

step 1

Find the value of x

we know that

m∠CDE+m∠EDF=180° ----> by supplementary angles (form a linear pair)

substitute the given values

(2x+1)\°+(x-7)\°=180\°

solve for x

2x+x=180+6

3x=186

x=62

step 2

Find the measure of angle ∠ADC

we know that

m∠ADC=m∠EDF ----> by vertical angles

m∠EDF=(x-7)°

substitute the value of x

m∠EDF=(62-7)°=55°

therefore

m∠ADC=55°

8 0
4 years ago
What is 443,219 rounded to the nearest ten thousand
KatRina [158]
440,000

the second 4 is in the ten thousands place, and since the next digit is 3, you round down
8 0
3 years ago
What is the slope of the line that contains the points (1 -1) and (-2 8)
wel

The slope of the line that contains the points (1 -1) and (-2 8) is -3

Step-by-step explanation:

Slope measures the steepness of a line. It is the ratio of vertical change to horizontal change. If the line increasing, the slope is positive and if the line is decreasing the slope is negative. If the line is horizontal slope is zero and if the line is vertical slope is undefined.

Equation for slope = (y2-y1)/(x2-x1)

here y2= 8

x2=-2

y1=-1

x1=1

Substituting the following,

slope = (8+1)/(-2-1)

=9/-3

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hence the slope is -3

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4 years ago
22 divided by 8,956 as a mixed number in simplest form
VikaD [51]

Answer:

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Step-by-step explanation:

8 0
3 years ago
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