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cleef6451
26.02.2021 •
Mathematics
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Ответ:
x=140°
Step-by-step explanation:
to get the exterior angle add the 2 given sides 72 and 68 to find the last interior angle
72°+68°=140°
all sums of interior angles should equal 180° so
180°-140=40°
take 40° and subtract is by 180°
180°-40°=140°
(A flat line is 180°)
so x=140°
Ответ:
x = 140°
Step-by-step explanation:
All angles in a trinagle add up to 180 so to find out the missing angle, subtract 72 and 68 from 180.
180 - 72 - 68 = 40
Straight angles are equal to 180, so subtract 40 from 180.
180 - 40 = 140
x = 140°
Ответ:
i can’t read cursive