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carolinamleal04
28.09.2020 •
Mathematics
Show that (-2, 1), (2, -2) and (5,- 2) are the vertics of the right triangle
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Ответ:
Step-by-step explanation:
A= (-2,1)
B= (2,-2)
C=(5,2)
slope = y1 - y2/ x1- x2
slope of
AB = -2-1/2-(-2)
= -3/4
BC= 2-(-2)/5-2
= 4/3
AC = -2-1/5-2
= -3/3
=-1
if ABC is a right triangle then AB should be perpendicular to BC
AB x BC = -1
LHS
=-3/4 x 4/3
=-1
= RHS
hence triangle ABC is a right triangle
Ответ:
Step-by-step explanation:
true- i am guessing that because whenever there's something on clearance my mom goes and buys things from there first.