4 years ago

this is stumping me. it's a geometry proof question, and i really need help! diagram and statements are attached in a picture.

1 answer:

3 0

We know :
<em />To prove: AD = CD
AB = CB
angle BEA = angle BEC
BE = BE (common side)
So, by SAS criterion (Side-Angle-Side),
ΔBEA congruent to ΔBEC.
By seeing the corresponding parts of the Congruent triangles, we observe:
AE = CE
So,
in triangles AED and CED,
ED = ED (common side)
AE = CE (given)
angle AED = angle CED
So, by SAS criterion:
ΔAED is congruent to ΔCED.
Therefore, by observing the corresponding parts of congruent triangles,
we can say that: AD = CD.

You might be interested in

Draw on a number line and show the direction of the inequalities<br> y ≥ 4

LekaFEV [45]

refer to the image given below:

4 0

3 years ago

Read 2 more answers

People go to a carnival. Children tickets cost $4.50 and adult tickets cost $7.25. If they bought 28 tickets and spent $59, how

xenn [34]

Answer:

Step-by-step explanation:

4 0

3 years ago

You and your friend meet at the movie theater to see Flying Ninja Toenails 5p of Death. You arrive at 5:40. Your friend arrives

NikAS [45]

Answer:

Wait for 32minutes.

Step-by-step explanation:

i think you could made time Am or Pm that can make your questions good. i am nub grammar sorry haha

3 0

3 years ago

A guy wire to a tower makes a 72 degrees angle with level ground. At a point 30 ft farther from the tower than the wire but on t

Andreyy89

So.. checking the picture below

we can say y = y, or just do a substitution and end up with

$\bf tan(72^o)=tan(30^o)(30+x)\implies 3.08x=\cfrac{30}{\sqrt{3}}+\cfrac{1}{\sqrt{3}}x
\\\\\\
3.08x-\cfrac{1}{\sqrt{3}}x=\cfrac{30}{\sqrt{3}}\implies 2.5x\approx 17.32\implies x\approx \cfrac{17.32}{2.5}$

once you know, how long is "x", then you can simply use the cosine of 72° to get "r"

thus $\bf cos(\theta)=\cfrac{adjacent}{hypotenuse}\qquad cos(72^o)=\cfrac{x}{r}\implies r=\cfrac{x}{cos(72^o)}$

6 0

4 years ago

Read 2 more answers

The ratio of red collars to black collars sold at one store is 9 to 10. in one month 30 black collars were sold. is 57 a reasona

AlekseyPX

27 red collars. 57-30=27

3 0

4 years ago