Each page of a photo album holds 3 rows of 4 square photos. the area of each photo is 25cmsquared .there is 2cm space between photos and a 3cm border around the group of pictures. what are the dimensions of one page of the photo album

Each photo is square-shaped and its area is 25 sq. cm.

So, side of each photo is

Let's first calculate the width of the page.

Width = Left and right border length + sum of lengths of the sides of 4 photos + spaces between 4 photos

         = (2 x 3) + (4 x 5) + (3 x 2) (Note that 3 spaces between 4 photos)

          = 6 + 20 + 6 = 32 cm.

Hence, the width of the page of the photo album is 32 cm.

Now, let's calculate its height.

Height = Top and bottom border length + sum of lengths of the sides of 3 photos + spaces between 3 photos (Note that there are 3 rows in every page)

         = (2 x 3) + (3 x 5) + (2 x 2) (Note that 2 spaces between 3 photos)

          = 6 + 15 + 4 = 25 cm.

Hence, the height of the page of the photo album is 25 cm.

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.