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Nikolay [14]
3 years ago
15

given that BD is the median of ABD and that ABD is isosceles congruence postulate SSS can be used to prove which of the followin

g? (picture below )

Mathematics
2 answers:
Marta_Voda [28]3 years ago
7 0
Correct answer is    A.  BAD=BCD
Alja [10]3 years ago
3 0

It is given in the question that

BD is the median. So it divides the opposite sides in two equal parts .

Therefore in triangles BAD and BCD,

AB and AC are congruent because of isosceles triangle.

AD and CD are congruent because of the median BD.

And BD and BD are congruent .

So the two triangles are congruent by SSS and the correct option is the first option .

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cestrela7 [59]

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Which is the value of this expression when a=-2and b=-3
monitta

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3 years ago
At the concert, there are 75 more girls than boys. If the ratio of girls to
Kryger [21]
<h3>Answers:  100 girls and 25 boys</h3>

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

Explanation:

x = number of boys

The ratio of girls to boys is 4:1, meaning there are 4 times as many girls compared to boys. For example, the concert may have 40 girls and 10 boys.

For now, x is some unknown positive whole number. But we can say that 4x represents the number of girls, as we multiply by 4.

----------

We're told there are 75 more girls than boys, so,

number of girls = (number of boys) + 75

4x = x + 75

4x-x = 75

3x = 75

x = 75/3

x = 25

There are 25 boys and 4x = 4*25 = 100 girls.

We can see that 100-25 = 75 to show that there are 75 more girls compared to boys.

And also, the ratio 100:25 reduces fully to 4:1 after dividing both parts by the GCF 25. These two facts fully confirm the answers.

3 0
2 years ago
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