Mei is writing a coordinate proof involving a right isosceles triangle. Mei places her triangle on the coordinate plane such tha
t one of the legs of the triangle lies along the x-axis and the other leg is parallel to the y-axis.
~ What coordinates should she assign to this third vertex of the right isosceles triangle?
~ What coordinates should she assign to this third vertex of the right isosceles triangle?
2 answers:
Answer: (a,a)
Step-by-step explanation:
Given: A right isosceles triangle which is placed on the coordinate plane such that one of the legs of the triangle lies along the x-axis and the other leg is parallel to the y-axis.
From the given figure one vertex is on origin(0,0) and second on x -axis as (a,0) .ii.e. one side of the triangle is on the x axis with length 'a' and the side parallel to the y axis should perpendicular to the x axis with length 'a'.(∵ two sides are equal in a right isosceles triangle)
So the coordinates should she assign to the third vertex of the right isosceles triangle is (a,a).[as the point lie above the point (a,0), so its x abscissa should be same]
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Square foot need to be painted, if width is equal to
feet
Step-by-step explanation:
Complete question -
Maya wants to paint one wall in her room blue. The wall is 22,9 feet high, and have no doors or windows. How many square feet need to be painted?
Solution -
The square feet need to be painted will be equal to the product of height and width of the wall i.e surface area of the wall
Let the width of the wall be feet
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Where H is the height of the wall in feet
W is the width of the wall in feet
Substituting the given values in above equation, we get -
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Thus, Square foot need to be painted