The surface area is made up of six sides and the area is then just the sum of the areas of the six sides...
A=2xy+2xz+2yz
A=2(xy+xz+yz) in this case:
A=2(5*4.5+5*3.5+4.5*3.5)
A=2(22.5+17.5+15.75)
A=2(55.75)
A=111.5 in^2
A shape with rotational symmetry means it looks the same after a rotation. The image at number 3 is the only one that has rotational symmetry so answer yes for 3 and no for 1 and 2 okay
Answer:
I=500×3×2.5÷100
=37.5
Step-by-step explanation:
500-37.5
=462.5
Answer:
4/21
Step-by-step explanation:
21 total computers and only 4 work so 4/21 probablity
