D(5, 7), e(4, 3), and f(8, 2) form the vertices of a triangle. what is m∠def?

Three times the sum of a number and seven is negative thirty-six. what is the number?

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.

Urgent? will give brainliest to the first correct answer what is the area of the figure?