keesbre
25.07.2019 •
Mathematics
How many triangles can i make with side lengths of 15 in, 7 in, and 4 in?
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Ответ:
15 is NOT less than (7 + 4) and therefore no triangle can be formed.
Ответ:
a = 60 degrees and b = 30 degrees
Step-by-step explanation:
30 degrees (line E) = angle b
angle b = 30 degrees
there is a right angle plus the 30 degrees = 120 degrees.
180 - 120 = 60 degrees which is angle a