miriamjb
19.05.2021 •
Mathematics
Two angles in a triangle have measures of 25° and 55°.
What is the measure of the third angle?
O A. 80°
O B. 100°
O C. 135°
O D. 30°
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Ответ:
B) 100
Step-by-step explanation:
All 3 interior angles of a triangle add up to 180 so:
x + 25 + 55 = 180
x + 80 = 180
x = 180 - 80
x = 100
Ответ:
10
Step-by-step explanation:
10