In which number does the digit 222 have a value that is \dfrac{1}{10} 10
1
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start fraction, 1, divided by, 10, end fraction times as great as the digit 222 in the number 6{,}257.116,257.116, comma, 257, point, 11?

The area of triangle is 25 square units.

Step-by-step explanation:

Given information: Vertices of the triangle are (2,1), (10,-1), and (-1,8).

Formula for area of a triangle:

The given vertices are (2,1), (10,-1), and (-1,8).

Using the above formula the area of triangle is

On further simplification we get

Therefore the area of triangle is 25 square units.