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The proof is shown below
<h3>What is congruency?</h3>
Two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.
Given:
∠CBA ≅ ∠FBA; ∠CAB ≅ ∠FAB
Now, ∠BCA is congruent to ∠BFA [reflexive property of congruence]
Also, AB= AB (common)
Thus, we can conclude that Δ BCA≅ Δ BFA by ASA criteria.
Learn more about congruence here:
brainly.com/question/7193968
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Area=legnth times width
in square, length=width
area living rom=12 times 18=216
area square bedrwoom=12*12=144
total=216+144=360
we don't actualy need to find the money value
bedroom/total=144/360=0.4=40/100=40%
40% spent on the bedroom
if you don't believe me
360*3.50=1260
bedroom=144*3.50=504
504/1260=0.4=40/100=40%