Step-by-step explanation:
The chromatic number of a graph is the smallest number of colors needed to color the vertices of so that no two adjacent vertices share the same color (Skiena 1990, p. 210), i.e., the smallest value of. possible to obtain a k-coloring. Minimal colorings and chromatic numbers for a sample of graphs are illustrated above ...
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The answer is G because the graph is proportional since the rate is constant
Given :
- The measures of the angles of triangle ABC are in the ratio 2:4:9.
To Find :
- The measures of the angles.
Solution :
- Let the angles of the triangle be 2x, 4x and 9x
We know that the sum of the angles of the triangle is 180°
So,
⠀⠀2x + 4x + 9x = 180°
➺ 15x ⠀⠀⠀⠀⠀⠀= 180°
➺ x ⠀⠀⠀⠀⠀⠀⠀= 180°/15
➺ x ⠀⠀⠀⠀⠀⠀⠀= 12°
⠀
So, The measure of the three angles are :
- 2x = 2 × 12° = 24°
- 4x = 4 × 12° = 48°
- 9x = 9 × 12° = 108°
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Answer:B
Step-by-step explanation:
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