2 The diagram shows squares 1,2, and 3 constructed on the sides of a right triangle. Which statement about the squares must be true?
A. (Area of 1) + (Area of 2) = (Area of 3)
B. (Area of 1) + (Area of 2) = (Perimeter of 3)
c. (Perimeter of 1) + (Perimeter of 2) = (Area of 3)
D. (Perimeter of 1) + (Perimeter of 2) = (Perimeter of 3)

no not all of them.

step-by-step explanation:

some of them have a square base.

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.