Question

prove that a triangle must have at least two acute angles​

Answer 1

Answer:

if a triangle will have 2 obtuse out right angle then the sum of three angle will be more than 180°.

Thus no triangle is formed because the sum of all the angles of a triangle if 180°

Answer 2

Answer:

20,30,130

Step-by-step explanation:

Triangle ABC of angleA=20, angleB=30 And angleC=130 degree

these type many angles will come

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