Question

how can we solve this​

Answer 1

x+15+3x+25=180

180=15+25+3x+x

180-40=4x

140=4x

35=x

if you want to know the answer of what is x 35 is the right answer

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Answer 2

Answer:

x + 15 + 3x + 25 = 180

4x + 40 = 180

4x = 140

x = 35

Acute Angle = x + 15 = 35 + 15 = 50°

Obtuse ang. = 3x + 25 = 3×35 +25 = 130°