The answer should be D because everything else is true.
Answer:
Step-by-step explanation:
this is an solution
As given,
The diameter of one glass bead = 0.4 cm
As the beads are stringed/attached end to end that means a straight line of beads (diameter) can be imagined and adding up all the diameters or multiplying the diameter with total number of beads, we can get the total length of the necklace.
Hence, the length can be found as =
cm
or converting this in meters we get
meter
Hence, the necklace will me 40 meters long.
Answer:
The area of the square is 225 cm².
Step-by-step explanation:
Since the geometric figure has a shape of a square, which is a special form of rectangle that has all the sides with the same length, then it's surface area is given by the following formula:
area = length*width = length^2
We can solve for the area by applying the data from the problem, we have:
area = (15)^2
area = 225 cm^2
The area of the square is 225 cm^2.