Question

Help i don’t know how to do this math problem

Answer 1

Given that,

Total surface are=102 m square.

To find the side length of A,

Let the side length of A be a,

we get,

`\text{Total surface area}=102`
`18+A+A+6+6+18=102`
`48+2A=102`
`2A=102-48`
`2A=54`
`A=27`

One side of the A is 3, we get that

A=product of one side and a

we get,

`A=3* a`

Substitute for A=27 we get,

`27=3* a`
`a=(27)/(3)`
`a=9`

The required side length of A is 9 m