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Blababa [14]
3 years ago
10

Help me now please ive been in this question for a really long time

Mathematics
1 answer:
Stolb23 [73]3 years ago
3 0

Answer:

Step-by-step explanation:

Since we are given the perimeter and the triangle sides we can find the length of the three sides of the square

2(20)+3s=112

3s=72

The total length of the three sides is 72 inches with each side equal to 72/3=24 inches.

The area of the triangles is hb/2 where the base is equal to the side of the square and a height of 16.

The area of the triangle is 24(16)/2=192in^2 and the area of the square is 24(24)=576in^2

And the total area is 192+576=768in^2.

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Ayush scored 720 marks out of900. And his brother scored 630 out of 700. whose perfomance is better​
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Answer:

in my opinion anush has the better performance

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3 years ago
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We are given AB ∥ DE. Because the lines are parallel and segment CB crosses both lines, we can consider segment CB a transversal
ohaa [14]

Answer: AAA similarity.


Step-by-step explanation:  CB is the transversal for the parallel lines AB and DE, and so by transverse property, we have ∠CED ≅ ∠CBA. Similarly, CA acts as a tranversal for the same pair of parallel lines AB and DE and using the same property, we can have ∠CDE ≅ ∠CAB. Now, in triangles CED and ABC, we have

∠CED ≅ ∠CBA,

∠CDE ≅ ∠CAB

and

∠DCE ≅ ∠ACB [same angle]

Hence, by AAA (angle-angle-angle) similarity,

△CED ~ △ABC.

Thus, the correct option is AAA similarity.


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3 years ago
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A has the coordinates (–4, 3) and B has the coordinates (4, 4). If DO,1/2(x, y) is a dilation of △ABC, what is true about the im
loris [4]

Answer:

Coordinates of Vertices of triangle ABC are A (-4,3) , B(4,4) and C(1,1).

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Vertices of A' B'C' are

A'=(\frac{-4}{2},\frac{3}{2})=(-2,\frac{3}{2}), B'=(\frac{4}{2},\frac{4}{2})=(2,2), C'=(\frac{1}{2},\frac{1}{2})

So, Image Δ A'B'C' will be smaller than the Pre image Δ ABC.

The two triangles will be congruent.

AO is Dilated by a factor of half , so A'O' will be half of AO.

So, correct Statements are

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OA=\sqrt{(-4)^2+3^2}=\sqrt{25}=5\\\\ O'A'=\sqrt{2^2+(\frac{3}{2})^2}=\frac{5}{2}=2.5

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3 years ago
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What is x over 5 equals 8 over 9?
julia-pushkina [17]
X/5 = 8/9
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slope: -2/3   y intercept: (0,5)

Step-by-step explanation:

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