Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 Re: Help Me ! » tough one im stuck on :( » 2007-08-05 09:19:05

noone can help with the equation? it's getting really frustrating now:(

#2 Re: Help Me ! » tough one im stuck on :( » 2007-08-04 17:28:31

thanks for the quick reply, im still not getting it done properly, im not exactly sure what to put in the calculator because i think im doing it wrong sad

#3 Re: Help Me ! » tough one im stuck on :( » 2007-08-04 16:51:00

hello, thanks for the reply i tried what you said but i cant quite get it done properly i'm not sure what im doing wrong i might be doing something wrong in the calculator because the answers im getting don't look right sad any further help would be great thanks smile

#4 Help Me ! » tough one im stuck on :( » 2007-08-03 15:27:00

tina12
Replies: 5

Elise and David took measurements of their family's block. Their parents wanted to know the block's area in square meters. This is Elise's sketch, unfortunately she spilt some ink
math4.jpg




They worked out the area of the block by using heron's formula:
Area of a Δ =
math5.jpg


(a,b,c are the sides of any triangle)




Aswell as spilling ink Elise also lost their answer.
(a) Find the possible values for the diagonal

let the length of the diagonal be x

set up expressions for the area of each of the triangles using heron's formula

write down an expression for the total area of the block

B)find the largest possible area of the block.

Board footer

Powered by FluxBB