What’s the angle for y?

y=42

Step-by-step explanation:

The sum of the angles of a triangle add to 180

y+ 48+ 90 = 180

The third angle is 90 because supplementary angles add to 180 and the other side is a 90 degree angle, which makes that angle equal to 90

y+ 48+ 90 = 180

Combine like terms

y +138 = 180

Subtract 138 from each side

y+138-138 = 180-138

y =42

#15. square

step-by-step explanation:

because quadrilatural (idk how to spell it) means somthing that is not 3d or like, equal sides (or somthing like that   you know what i meanz)

hope this halps!

bai!