The following coordinates are known with respect to a Cartesian system with origins in O, referring to the four points A, B, C and D: Xa = -50.58 m; Ya = 17.81 m XB = -35.07 m; YB = -28.56 m Xc = 38.87 m; Yc = -33.75 m Xd= 29.66 m; Yd= 63.42 m Calculates: • the internal angles, in hundredth degrees, of the quadrilateral ABCD; • the perimeter and area of the ABCD quadrilateral; • the coordinates of the point K intersection of the two diagonals of the quadrilateral.

step-by-step explanation:

-1/2 +2

step-by-step explanation:

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.