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montesa0910
24.06.2020 •
Mathematics
How do I find value of X
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Ответ:
147°
Step-by-step explanation:
106°+139°+126°+141°+112°+129°+x =900°
753°+x = 900°
x = 900°-753°
x= 147° (sum of the interior angles of a heptagon=900°)
Ответ:
K+8-2(k-12)>0
K+8-2k+24>0
-K+32>0
-K>-32
K<32