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2 years ago

Need help for geo..will mark brainlist

Mathematics

1 answer:

gladu [14]2 years ago

7 0

<h3>1st pair of triangles :</h3>

Postulate/theorem = <u>SAS postulate</u>

<h3>Explanation :</h3>

Given :

One side in both triangles are congruent.
Another side in both triangles is also congruent.
The angles between these two sides are also equal.

Since 2 sides and an included angle is equal in these two triangle, they are said to be congruent under the SAS congruence postulate.

<h3>2nd pair of triangles :</h3>

Postulate/theorem = <u>ASA postulate</u>

<h3>Explanation :</h3>

Given :

In triangle KDS and triangle KWS :

Angle K = Angle K
Angle S = Angle S
Side KS = Side KS

Since 2 angles and an included side is equal in these two triangles, they are said to be congruent under the ASA congruence postulate.

<h3>3rd pair of triangles :</h3>

Postulate/theorem = <u>AAS theorem</u>

<h3>Explanation :</h3>

Given :

In triangle ACB and triangle BED :

Angle A = Angle B
Angle B = Angle D
Side CB = Side ED

Since two angles and one side is equal in these two triangles, they are said to be congruent under the AAS theorem.

You might be interested in

suppose you know that two angles,angle A and B,are supplementary.The measure of angle A is 5 times the measure of angle B. Find

Morgarella [4.7K]

Angle A is 150
Angle B is 30
Supplementary= 180, so....
Angle A + Angle B = 180
150 + 30= 180

hope this helps

3 0

2 years ago

Read 2 more answers

When you are trying to find the endpoint when given the midpoint and one point, what would the new formula be? Manipulate the fo

MariettaO [177]

Answer:

$(x_2,y_2) = (2x_m - x_1 ,2y_m - y_1 )$

Step-by-step explanation:

Given

$\left(\frac{x_1+\:x_2}{2},\:\:\frac{y_{1\:}+y_2}{2}\right)\:=\:\left(x_m,\:y_m\right)$

Required

Determine x2, y2

Start by splitting the expression

$x_m = \left(\frac{x_1+\:x_2}{2})$ and $y_m = (\frac{y_{1\:}+y_2}{2})$

Solving for x2 in $x_m = \left(\frac{x_1+\:x_2}{2})$

Multiply through by 2

$2 * x_m = \frac{x_1 + x_2}{2} * 2$

$2x_m = x_1 + x_2$

Make x2 the subject;

$x_2 = 2x_m - x_1$

Similarly:

$y_m = (\frac{y_{1\:}+y_2}{2})$

Multiply through by 2

$2 * y_m = \frac{y_1 + y_2}{2} * 2$

$2y_m = y_1 + y_2$

Make y2 the subject;

$y_2 = 2y_m - y_1$

Hence:

$(x_2,y_2) = (2x_m - x_1 ,2y_m - y_1 )$

7 0

3 years ago

Answer please and explain some of them!

boyakko [2]

The first one is < because if you have 5 part of 7, you have more parts than if you have 4 parts of 7, but it’s negative so it’s the opposite

8 0

3 years ago

Instructions: Find the area of the sector. Round your answer to the nearest tenth.

likoan [24]

Answer:

75.7m^2

Step-by-step explanation:

$\frac{30}{360} \times \pi {r}^{2} \\ \frac{30}{360} \times \frac{22}{7} \times {17}^{2} \\ \frac{1}{12} \times \frac{22}{7} \times 289 \\ 75.6904761905 = 75.7$

4 0

2 years ago

En un programa de televisión se hacen 30 preguntas. Por cada respuesta correcta se suman 8 puntos, por cada respuesta errónea se

nikdorinn [45]

Answer:

7 wrong answers.

Step-by-step explanation:

We know that when you answer a question well, you earn 8 points and a bad one loses 5 points, this means that when you answer 1 good and 1 bad, there is a total of 3 points (8-5).

This means that when answering 5 good and 5 bad, in total it would be 3 * 5 points, that is to say 15 points, that is, it goes through 2 points. To subtract 2 points, you would have to answer 1 good and 2 bad, (8 - 2 * 5), which turns out to be -2 points.

In total there would be 6 questions right and 7 questions wrong, like this:

8 * 6 + 5 * 7 = 13

13 points, in 13 questions (6 correct + 7 incorrect)

The rest of the questions were not answered so that the score does not go up or down.

Which means you got 7 wrong answers.

8 0

3 years ago