I just learned this today and it’s a little confusing , is there anyone that could explain how to do these problems for me ?
1 answer:
Step-by-step explanation:
I'll do the first problem as an example.
∠P and ∠H both have one mark. That means they're congruent.
∠T and ∠G both have two marks. So they're congruent.
∠W and ∠D both have three marks. So they're congruent.
So we can write a congruence statement:
ΔPTW ≅ ΔHGD
We can write more congruence statements by rearranging the letter, provided that corresponding pairs have the same position (P is in the same place as H, etc.). For example:
ΔWPT ≅ ΔDHG
ΔTWP ≅ ΔGDH
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Answer:
26.4
Step-by-step explanation:
<u>Law Of Cosines:</u>
This should work for any side. This can generally be thought as:
If this is too confusing here's the formula for the other sides (which is essentially the same, just different variables)
Anyways now just plug in the known values into the equation
Square and multiply values
Add the values in the numerator
Take the inverse of cosine on both sides
calculate arccosine (inverse cosine) using a calculator
Round to nearest tenth