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Troyanec [42]
3 years ago
8

Which of these always has congruent diagonals?

Mathematics
2 answers:
dlinn [17]3 years ago
8 0

Answer:

Rectangle always have congruent diagonals.

Step-by-step explanation:

Given some figures kite, quadrilateral, rectangle and rhombus. we have to find which of these always have congruent diagonals.

The diagonals of a kite intersect at a right angle and have exactly one pair of opposite angles congruent. But does not have congruent diagonals.

If the quadrilateral is rectangle, square, isosceles trapezoid then only the diagonals are congruent.

Rhombus also does not have congruent diagonals.

The only option whose diagonals are congruent is rectangle.


docker41 [41]3 years ago
4 0

Answer:

rectangle

Step-by-step explanation:


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Anna [14]

Answer:

$25.20

Step-by-step explanation:

First, take the 50% off the sales price:

($48)*(-0.50) = -$24.

($48 - $24) = $24 sale price.

Tax on $24 is ($24)*(0.05) = $1.20

Add the price and sales tax:

$24 + $1.20 = $25.20

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2 years ago
A sphere and a cylinder have the same radius and height. The volume of the cylinder is 30 m ^3 ( 30 m cubed).
Andrei [34K]

Answer:

B is the right answer

Step-by-step explanation:

The difference between the volume of a sphere and a cylinder is 2/3

take 30 x 2 = 60

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Hope this helps.

8 0
3 years ago
Read 2 more answers
I need some help with this rational equation. It's supposed to = -1, but for some strange reason I keep getting x^2 +2x = -1.
Rasek [7]

This one is so easy that your brain refuses to accept it.
It's looking for a harder answer, but can't find it !

You're totally correct, as far you went.     x² + 2x does = -1

Now add ' 1 ' to each side:     x² + 2x + 1 = 0

Can you factor that quadratic ?
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Actually, it's the simplest possible perfect square.

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So the solutions of     x² + 2x + 1 = 0  are both   x = -1 .

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You drive 140 miles in 2.5 hours and 300 miles in 5.5 hours. What is the rate of change ?
Sveta_85 [38]
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