Let's take a look at the triangles ABC and DCB
1. angles : B=C=90° because they are right triangles (AB perpendicular to BC and DC perpendicular to BC)
2. AC=BD (given)
3. BC is in common (the two triangles have it, you can say it like BC=BC)
So we proved that by SAS(side angle side), the triangles are congruent ABC= DCB
Since the triangles are congrueny, all their sides are equal so we can say that AB=DC
Answer:
it should be 60°. the single marks on each side means they are all equal
Answer:
The answer is b.
Step-by-step explanation:
If you divide y by x for every pair, you will get the number 4. This means that it is proportional because each pair has the same solution.
Hope this helps!
Answer:
Step-by-step explanation:
<h3>Hope it is helpful....</h3>