I need help if u can thanks!!

9) 496 cubic unit

10)10.94

Step-by-step explanation:

in question 9, req volume will be (volume of cube of lenght 10 - that of hole)

hole can be divided into 5 parts,in which 4 have same dimension 6×6×2,and middle part is cube of dimension 6×6×6, total volume will be 4(6×6×2)+6×6×6

=504 cubic.unit

volume of larger cube is 10×10×10=1000 cubic unit

req answer is 1000-504 cubic unit

=496 cubic unit.

10) the ant should walk diagonally to cover minimum distance to reach from A to B, the shortest distance will be when the ant cover the height of lenght 2,then diagonally btwn 4×8, i.e, by using Pythagorean theorem √(16+64)=8.94

now total will be 8.94+2=10.94, it's the shortest possible distance so far!

I'll update each part after solving... wait!

a is the correct

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.