Question

0.4 Two angles of a triangle measure 56 and 87º. Find the third angle of the
triangle​

Answer 1

Step-by-step explanation:

sum of all angles of triangle = 180°

two angles = 56, 87

third angle = 180° - (56+87 )

= 180- 143

= 37

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Answer 2

Answer:

Step-by-step explanation:

Let the 3rd angle = x

56+87+x = 180 ( angle sum property)

X = 180 - 143

X = 37⁰