3 years ago

Answer?? what’s is the value of a

Mathematics

2 answers:

max2010maxim [7]3 years ago

6 0

Answer:

Step-by-step explanation:

since the inside of a triangle is equal to 180

180-42-73=65

65/5=13 so 13 should be the answer.

Gwar [14]3 years ago

5 0

Sum of the interior angles of a triangle= 180°

Therefore, 42°+ 73°+5a= 180°

=> 115°+5a = 180°

=> 5a= 180- 115°

=> 5a = 65°

=> a = 65°/5

=> a= 13°

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