Year 7 High School Maths

[chroniclard]

265m2?

 

[Terminal_Boy]

Without any info about the depth of the indent, I can’t see anyway to solve this.

 

[ColdAsIce]

265m2 total?

16x4 for top secton

16x5 for bottom section

11x11 for mid section? Then total the 3 parts.

 

[PaulStat]

Assuming the indent is a square then it would be easy

(20 * 16) - (11 * 11) =

 

[joey1211]

Assuming didn't land us on the moon though did it.

 

[LiE]

Yep you break it into 3 separate areas using the info you're given.

 

[touch]

edit

 

[LiE]

Without any info about the depth of the indent, I can’t see anyway to solve this.

You have the size of the indent. It's 20 minus the 4 and 5, leaving the "gap" number, 11.

 

[LiE]

edit

(16*4) + (16*5) + (11*11) = 265 ?

 

[touch]

You have the size of the indent. It's 20 minus the 4 and 5, leaving the "gap" number, 11.

And how wide is it?
Why would you just assume it's square? None of the other parts you've broken it down into are square.

 

[dirtychinchilla]

Yeah but that's just the height of it, not the depth

 

[LiE]

And how wide is it?
Why would you just assume it's square? None of the other parts you've broken it down into are square.

I guess you have to, since it's year 7 maths and not a technical drawing

You are right though, it should be like this:

 

[dirtychinchilla]

You can't make that assumption though

 

[AHarvey]

Couldn't be done without knowing the 8 measurement LiE posted

 

[touch]

I guess you have to, since it's year 7 maths and not a technical drawing

If, for some reason, you assume they've included a square, it would be equally as likely that the cutout area is a square so the 8 on your diagram could be an 11.

 

[LiE]

You can't make that assumption though

True, we should instead write a strongly worded letter to the teacher who produced the home work, making them question their life choices

 

[Maccy]

Yeh I messed up, hadn't had a coffee.

It can't be done without guessing.

 

[PermaChanged]

Assuming didn't land us on the moon though did it.

Return to the teacher with a note "My dad said this is impossible to work out unless we assume the indent is square, but assumption didn't get us to the moon"

 

[labbby]

Just sent this to an actuary i know

 

[Roar87]

It says it isn't drawn to scale, so you can't assume it's a square. There isn't enough information.

 

[andicole0]

Return to the teacher with a note "My dad said this is impossible to work out unless we assume the indent is square, but assumption didn't get us to the moon"

This.
Andi.