9514 1404 393
Answer:
BC ≈ 17.0 (neither Crow nor Toad is correct)
Step-by-step explanation:
The left-side ratio of (2+4)/4 = 3/2 suggests BC is 3/2 times the length DE. If that were the case, BC = (3/2)(11) = 16.5, as Crow says.
The right-side ratio of (5+9)/9 = 14/9 suggests that BC 9 is 14/9 times the length DE. If that were the case, BC = (14/9)(11) = 154/9 = 17 1/9 ≈ 17.1, as Toad says.
The different ratios of the two sides (3/2 vs 14/9) tell you that the triangles are NOT similar, so the length of BC cannot be found by referring to the ratios of the given sides.
Rather, the Law of Cosines must be invoked, first to find angle A (109.471°), then to use that angle to compute the length of BC given the side lengths AB and AC. That computation gives BC ≈ 16.971. (See the second attachment.)
Answer:
V is given to be midpoint of WZ and XY
=> WV = VZ and XV = VY (1)
As opposite angles,
=> WVX = ZVY (2)
From (1) and (2), then
Triangle WXV = Triangle ZYV (SAS)
=> Option SAS is correct.
Hope this helps!
:)
Step-by-step explanation:
I hope you got the hang of it.
I didn't had a place to draw the verbal questions, so I just did them in my head - if you want to understand it better
I suggest that you draw those triangles
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ÷)
Using equivalent angles, the solutions to the equation are given as follows:
<h3>What are equivalent angles?</h3>
Each angle on the second, third and fourth quadrants will have an equivalent on the first quadrant.
In this problem, the equation is:
Applying the inverse relation:
Which is on the third quadrant. The equivalent angle on the fourth quadrant is given as follows:
More can be learned about equivalent angles at brainly.com/question/28025397
#SPJ1
You should write numbers in as many ways as you possibly can to make new connections in your brain. Knowing how to write numbers in many different ways can help you solve difficult problems more easily. Doing this can also reinforce the mathematical principles and logic you have memorized. Hope this helped
