∆ABC and ∆PQR are similar. ∆ABC is dilated by a scale factor of 1.25 and rotated 45° counterclockwise about point B to form ∆PQR. The side lengths of ∆ABC are AB¯¯¯¯¯, 5 units; BC¯¯¯¯¯, 4.2 units; and AC¯¯¯¯¯, 4 units. Match each side of ∆PQR to its length.
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OpenStudy (anonymous):
pic
OpenStudy (anonymous):
@Baseballguy101
OpenStudy (baseballguy101):
This is quite simple one you understand it. All you have to do is multiply 5,4.2, and 4 by 1.25
OpenStudy (baseballguy101):
seperate. So 5 x 1.25, 4.2 x 1.25, then 4 x 1.25
OpenStudy (baseballguy101):
does it make sense why?
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OpenStudy (anonymous):
Yes, it does. So I just multiply those by 1.25 and that's the answer?
OpenStudy (baseballguy101):
yep let me see what you got when you're done
OpenStudy (anonymous):
But the angles down below do not make sense?
OpenStudy (baseballguy101):
the triangles are similar so pq is = to ab, qr is = to bc, and ac is = to pr
OpenStudy (anonymous):
OH.
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