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3 years ago

Given: ABC , BD is an altitude to side AC, & D is a midpoint Prove: AB BC

Mathematics

2 answers:

Sveta_85 [38]3 years ago

7 0

Answer:

Step-by-step explanation:

BD is an altitude given

D is midpoint of AC given

BD ⊥ AC an altitude is a perpendicular segment

from a vertex to the opposite side

AD = DC because BD is a perpendicular bisector

BD = BD reflexive property

∠ADB ≅ ∠CDB because BD ⊥ AC

ΔADB ≅ ΔCDB SAS

AB ≅BC corresponding sides of congruent triangles

are congruent

Over [174]3 years ago

5 0

Answer:

steps below

Step-by-step explanation:

BD⊥AC ∠ADB = ∠CDB = 90°

D is mid-point: AD = CD

BD = BD

ΔADB ≅ ΔCDB

AB = BC

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Cancel the common factor of the numerator and the denominator and write specified expression

lisabon 2012 [21]

Step-by-step explanation:

Hello,

I hope you mean to cancel the common factor that exists in numerator and denominator,right.

so, Let's look for the common factor, 

here, the expression is, 

=4(x-2)/ (x+5)(x-2)

so, here we find the common factor is (x-2)

now, we have to cancel it. And after cancelling we get,

=4/(x+5)

Note:{ we cancel the common factor if the common factors are in multiply form.}

Hope it helps 

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3 years ago

WHATS THREE FOURTHS TIMES FIVE SEVENTHS?

schepotkina [342]

3/4 * 5/7 = 15/28 or 0.5357

8 0

4 years ago

Read 2 more answers

Can someone please help me?

NARA [144]

Answer:

512

Step-by-step explanation:

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3 years ago

20% of 57 is what number ? The proportion is ?

Elanso [62]

Answer:

11.4

20/100 = x/57

Step-by-step explanation:

It is perhaps simplest just to translate the given English sentence into a mathematical sentence.

... 20% ... ... of ... 57 ... is ... what number

... 20/100 ... × ... 57 .... = ... what number . . . . . . . . translation to math sentence

... 11.4 = what number . . . . . . . . carry out the multiplication

_____

If you're asked to write this as a proportion, you can write it like this:

$\dfrac{20}{100}=\dfrac{\text{what number}}{57}$

You can solve this proportion by multiplying by 57 (the denominator under "what number"). Doing so gives you the same arithmetic sentence as shown above.

6 0

3 years ago

Circumference of circle 132cm find the area of circle is

Volgvan

Answer: 1386 sq.cm.

Step-by-step explanation:

2Pi r= 132

2 * 22/7 * r = 132

r = 21

Area = pi * r * r

= 22/7 * 21 * 21

= 1386 sq.cm.

Hope this helps :))

4 0

3 years ago