I am guessing you meant 9+10 which is 19
I’m answering cuz i need to message someone about biology but i haven’t answered enough questions good luck !
Answer:
66.42degrees
Step-by-step explanation:

Answer:
d 5,15,19
Step-by-step explanation:
The sum of the shortest two sides must be longer than the longest side. That is only the case for selection D.
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If the sum is equal to the longest side, the segment ends will meet, but the "triangle" will look like a line segment. Many authors do not allow such a thing to be called a triangle. Hence, 'b' is not an answer to this question.
(Some authors <em>do</em> allow such a triangle, in which case, there would be two answers here: B and D.)
Answer:
sdgggggggggggggggggggggggggggg
Step-by-step explanation: