Suppose △PKN≅△BGH△PKN≅△BGH. Which other congruency statements are correct?

Mathematics

2 answers:

bagirrra123 [75]3 years ago

5 0

Angle KNP=GHB and angles NPK=HBG

Andreyy893 years ago

3 0

Line PK is congruent to Line BG
Line PN is congruent to Line BH
Line KN is congruent to Line GH

∠P is congruent to ∠B
∠K is congruent to ∠G
∠N is congruent to ∠H

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Cynthia Besch wants to buy a rug for a room that is 19 ft wide and 32 ft long. She wants to leave a uniform strip of floor aroun

Rainbow [258]

Answer:

The rug should be 15 ft wide and 28 ft long.

Step-by-step explanation:

I have attached a figure that represents the situation.

The the rug is $l$ by $h$ , the width of the strip of floor is $w$ .

We are told that Cynthia can only afford 420 square feet of carpeting; therefore, it must be that

$l*h=420$ <em>(this says the area of the rug must be 420 square feet)</em>

From the figure we see that

$l= 32-2w$

$h=19-2w$

Therefore,

$l*h=420\\\\(32-2w)(19-2w)=420$

We expand this equation and get:

$4w^2-102w+608=420\\\\4w^2-102w+188=0$

using the quadratic equation we get two solutions:

$w=2\\w=23.5$

since the second solution, namely $w=23.5$ , is larger than one of the dimensions of the room (is greater than 19 ft) it cannot be the width of the strip; therefore, we take $w=2$ to be our solution.