180 degrees in a triangle. so 180-90-31=59
For this question you should say:
3 small blue beads + 1 small metallic bead + 2 large green beads = 6
now for one earring she needs 6 beads so for 8 earrings she will need:
6*8 = 48 :)))
i hope this is helpful
have a nice day
C - is a hypotenuse,
so we can use Pythagorean theorem.
c² =a² +b²
c² = 8²+12²=64 + 144 = 16*4 +16*9=16(4+9) =16*13
c²=16*13
c=√(16*13)=√16*√13=4√13
c=4√13
Answer C. 4√13
