Question

Marcus is drawing a triangle. He has used angle measures of 53.5 and 61º What angle measure will complete the triangle?

Answer 1

Answer:

65.5 degrees

Step-by-step explanation:

Triangles add up to 180 degrees. So, the last value has to make the rest add up to 180.

Let x be the unknown degree.

61 + 53.5 + x = 180.

You cancel out the 61 and the 53.3 by subtraction, making you get

x = 65.5

Hope I helped !!! :)