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Lorico [155]
3 years ago
11

Which angles are vertical angles?

Mathematics
1 answer:
shutvik [7]3 years ago
6 0

Answer:

<DCA and <BCF

Step-by-step explanation:

The vertically opposite angles are the angles <DCA and <BCF. These angles are always equal.

  • When two lines cross, two angles that are vertical two one another are equal.
  • They are know as vertically opposite angles.
  • When two straight lines cross each other, four angles are produced.
  • The two vertically opposite have the same values.

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Write the formula to calculate the area of a triangle whose sides are unequal in length ​
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Answer:

√S(S-A)(S-B)(S-C)

Step-by-step explanation:

S=(A+B+C)\2

where S= semi-perimeter

A,B and C are unequal length of triangle.

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Of the pets in the pet show 5/6 are cats. 4/5 of the cats are calico cats. What fraction of the pets are calico cats?
krok68 [10]
24/30 are calico and 25/30 are cats


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How many ways can a president, vice president, and treasurer be selected from a group of 40 students?
Nimfa-mama [501]

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a

Step-by-step explanation:

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3 years ago
The population and area of three U.S. states in the East Coast region are given:
WITCHER [35]

Answer:   a) Density of,

New York = 420

Maryland =  619

Pennsylvanian = 286

b) The required order from most dense state to least dense state is,

Maryland, New York, Pennsylvanian

Step-by-step explanation:

a) Since, Density = \frac{Population}{Area}

Here, The population of New York = 19,795791

Area = 47126

Thus, the Density of the New York

= \frac{19,795791}{47126} =420.060921784\approx 420

Similarly, Density of Maryland,

= \frac{6,006,401}{9,707}= 618.770062841\approx 619

And, Density of Pennsylvania

= \frac{12,802,503}{44,743}= 286.134210938\approx 286

b) Since, 619 > 420 > 286

Thus, the states in the decreasing order of their density,

Maryland, New York, Pennsylvanian

7 0
3 years ago
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