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grigory [225]
3 years ago
11

How to solve the problem

Mathematics
1 answer:
777dan777 [17]3 years ago
4 0
Hope this helps.....

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Compare the Triangle Proportionality Theorem and the Triangle Midsegment Theorem.
Alenkinab [10]
A midsegment of a triangle is parallel to one side of the triangle, and its length is one half of the length of that side.

If a line is parallel to one side of a triangle and intersects the other two sides, then it divides the sides into segments of proportional lengths.
6 0
3 years ago
If triangle ABC is reflected over the y‐axis, reflected over the x‐axis, and rotated 180 degrees, where will point A' lie?
Ronch [10]

Given that ABC is a triangle and is reflected over the y - axis, reflected over the x - axis and rotated 180°

We need to determine the coordinates of the point A'

<u>Reflection over the y - axis:</u>

The coordinates of the point A is (-2,1)

The transformation rule to reflect across the y - axis is (x,y)\rightarrow (-x,y)

Substituting the point (-2,1) in the rule, we get;

(-2,1)\rightarrow (2,1)

Thus, the coordinates of the point A after reflection over the y - axis is (2,1)

<u>Reflection over the x - axis:</u>

The transformation rule to reflect across the x - axis is (x,y)\rightarrow (x,-y)

Substituting the point (2,1) in the rule, we get;

(2,1)\rightarrow (2,-1)

Thus, the coordinates of the point A after reflection over the x - axis is (2,-1)

<u>Rotation about 180°:</u>

The transformation rule to rotate about 180° is (x,y)\rightarrow (-x,-y)

Substituting the point (2,-1) in the rule, we get;

(2,-1)\rightarrow (-2,1)

Thus, the coordinates of the point A after the rotation about 180° is (-2,1)

Therefore, the coordinates of the point A' is (-2,1)

Hence, Option B is the correct answer.

7 0
3 years ago
Help please this my second time posting this please help
Nesterboy [21]

Answer:

x = √30

Step-by-step explanation:

From small triangle BDC:

using Pythagorean theorem

CB² = BD² + DC²

x² = BD² + 3²

Fron triangles BDC and ADB.

ΔBDC has long leg BD and short leg DC.

ΔADB has long leg AD and shirt leg BD.

AD : BD = BD : DC

7 : BD = BD : 3

7*3 = BD*BD

BD² = 7*3 = 21

x² =  BD² + 3² = 21+9 = 30

x² = 30

x = √30

4 0
3 years ago
72.1 divided by 7<br> Estimate the quotient
Ulleksa [173]
Do 72 divided by 7 to get your answer
4 0
2 years ago
Read 2 more answers
Which expression is equivalent to 3(5x-4)
erastovalidia [21]

Answer:

15x - 12

Step-by-step explanation:

3(5x - 4)

15x - 12 using the distributive property

BRAINLIEST IS APPRECIATED

4 0
3 years ago
Read 2 more answers
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