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3 years ago

Which triangles are similar? A. 12 6 B. 8 16 C. 8 4 D. 3 6

Mathematics

2 answers:

pav-90 [236]3 years ago

8 0

Answer:

Step-by-step explanation:

Harrizon [31]3 years ago

6 0

Answer:

Sides: a = 12 b = 12 c = 6

Area: T = 34.857

Perimeter: p = 30

Semiperimeter: s = 15

Angle ∠ A = α = 75.522° = 75°31'21″ = 1.318 rad

Angle ∠ B = β = 75.522° = 75°31'21″ = 1.318 rad

Angle ∠ C = γ = 28.955° = 28°57'18″ = 0.505 rad

Height: ha = 5.809

Height: hb = 5.809

Height: hc = 11.619

Median: ma = 7.348

Median: mb = 7.348

Median: mc = 11.619

Inradius: r = 2.324

Circumradius: R = 6.197

Vertex coordinates: A[6; 0] B[0; 0] C[3; 11.619]

Centroid: CG[3; 3.873]

Coordinates of the circumscribed circle: U[3; 5.422]

Coordinates of the inscribed circle: I[3; 2.324]

Exterior (or external, outer) angles of the triangle:

∠ A' = α' = 104.478° = 104°28'39″ = 1.318 rad

∠ B' = β' = 104.478° = 104°28'39″ = 1.318 rad

∠ C' = γ' = 151.045° = 151°2'42″ = 0.505 rad

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algol13

The probability of selecting or choosing seven marbles is 0.29.

Let E be the event of choosing seven red marbles.

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Now, the total number of ways of selecting 12 marbles from 24 = $^{24} C_{12}$

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brainly.com/question/11234923

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