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mrs_skeptik [129]
3 years ago
8

Geometry, please answer question ASAP

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
5 0

Answer:

C) 81 degrees

Step-by-step explanation:

all quadrilateral's sum of interiror angles is 360 degrees

right angles are 90 degrees

call measure of angle C =y

360=90+90+99+y

180=99+y

y= 81

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