Match the coordinates with the points on the coordinate plane

Mathematics

1 answer:

Gnesinka [82]3 years ago

5 0

Answer:

Step-by-step explanation:

$(-2\frac{1}{2},3\frac{1}{2})$

Since, x-coordinate is negative and y-coordinate is positive, point will lie in the 2nd quadrant.

Answer is point P.

(-3, 6)

Point L represents the given coordinates.

$(-4\frac{1}{2},2)$

Point P represents the given coordinates.

$(2\frac{1}{2},2\frac{1}{2})$

Since, x and y coordinates are positive, point will lie in the 1st quadrant.

Point Q represents the given coordinates.

$(-1\frac{1}{2},-3\frac{1}{2})$

Since, both x and y coordinates are negative, point will lie in the 3rd coordinate.

Point R represents the given coordinates.

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2 years ago

AC=36cm, and BC=27cm. Verify that DE\\AB.

emmasim [6.3K]

Answer:

$\overline {DE} \parallel \overline{AB}$ because $\frac{EC}{DC} = \frac{AC}{BC}$ .

Step-by-step explanation:

According to the Theorem of Thales and definition of proportionality, $\overline {DE} \parallel \overline{AB}$ if and only if $\frac{EC}{DC} = \frac{AC}{BC}$ . If we know that $EC = 15\,cm$ , $DC = 20\,cm$ , $BC = 36\,cm$ and $AC = 27\,cm$ , then we have the following result: