The lengths of the sides of a rectangle are 12.4 and 26. what are the measures of the angles between its diagonals? round your answers to the nearest whole number.

129 and 51 degrees.

Step-by-step explanation:

Drawing a diagonal gives us a triangle  with the opposite side = 12.4 and the adjacent side = 26.

tan x = 12.4 / 26

x = 25.497 degrees.

The other angle will be 90 - 25.497

= 64.503 degrees.

One of the diagonal angles is  180 - (2*25.497)

= 129 degrees

and the other  is 180 - 129 = 51 degrees.

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step-by-step explanation:

you can use a^2+ b^2=c^2