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Mrac [35]
3 years ago
9

How many different isosceles right triangles can be formed from three dots in the grid below? Two examples are shown.

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
8 0

Answer:

  28

Step-by-step explanation:

The attached figure shows 7 triangles (counting the original 2). Each has degree-4 rotational symmetry about the center of the figure, so there can be 7×4 = 28 triangles.

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Which congruence theorems or postulates could be given as reasons why ABC =XYZ HELP !!!!
lara31 [8.8K]
Answers: 
A) SAS
B) ASA
E) LL

============================================================

Explanation:

Let's go through each possible answer choice

A. We can use SAS because we know that AC = XZ (horizontal sides) is one pair of congruent sides, the angle pairing is C = Z, and the other pair of sides is BC = YZ (vertical sides)

B. We can also use ASA. Note how A = X is one pair of angles, AC = XZ is the middle pair of sides, and C = Z is the second pair of angles. The side is between the angles.

C. We can't use SSS as we don't know AB = XY is true or not. There are no tick marks indicating congruence.

D. We can't use LA here because we don't know the altitudes (LA = leg altitude)

E. We can use LL here because we have two right triangles. The two pairs of legs (AC = XZ and BC = YZ) are congruent based on the tickmarks.

F. We can't use HL similar to the reasoning for choice C. We don't know the hypotenuses are congruent or not. If we knew that AB = XY, then we could use HL (hypotenuse leg).


4 0
4 years ago
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Please help me! what’s the answer?<br><br> 1) Two points<br> 2) One point <br> 3) One equation
Fiesta28 [93]

Answer:

I think 2 points

Step-by-step explanation:

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3 years ago
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Leno4ka [110]

Answer:

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Step-by-step explanation:

I also up a link there of a graph. Please tell me if you can open it. Hope this helps! :P

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3 years ago
A pen in the shape of an isosceles right triangle with legs of length x ft and hypotenuse of length h ft is to be built. If fenc
IceJOKER [234]

Answer

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CHECK THE ATTACHMENT FOR DETAILED EXPLANATION

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