Fire8615
04.03.2021 •
Mathematics
I want to know how to solve this question I’m stuck and don’t know how to do this ......
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Ответ:
WRITE A ONE PAGE ESSAY TO EXPLAIN THE AUTHOR'S PURPOSE IN WRITING HOM SMART ARE ANIMAL
Step-by-step explanation:
Ответ:
Length of CD = 9.8 units
Step-by-step explanation:
Given AB || CD
angles BAC = ACD ................alternate interior angles
Angles CBA = CAD = 90 (given)
=>
Triangles ABC and CAD are similar (AAA)
AB / AC = CA / CD ................Similar triangles have corresponding sides proportional
5 / 7 = 7 / CD
CD = 7*7/5 = 49/5 = 9.8
=