Leigh plans to estimate the area of the figure on the grid by identifying the full and partial squares that make up the figure. On a coordinate plane, a figure contains 3 full squares and 12 partial squares.

If Leigh uses the strategy, which statement best describes the figure?
3 full squares and 12 partial squares
3 full squares and 15 partial squares
4 full squares and 7 partial squares
4 full squares and 13 partial squares

step-by-step explanation:

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moderators are

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)