...Beauty, cleaning, DIY tips and more - free to join!
   Login   Contact us   Site map   Puzzle Club   Ask a question    Newsletter

What is the area of the square when a diagonal is given ?

the diagonal of a square is 90 metres. what is its area ?
Question asked by: manuscott

Asked on: 09 Jun 2010

Diagonal of a square = 90 m
Let 'a' be the side of the square
Draw a rough diagram of a square. The diagonal cuts the square into two right angled triangles.
By Pythagorus Theorem,
Base squared+height squared = Hypotenuse squared
Here base=height=a; hypotenuse= 90 m
a squared + a squared = 90 squared=8100 m squared
2 x (a squared)= 8100
a squared = 8100/2 = 4050
Area of square = side squared
= a squared = 4050 m squared

By: appuswathi
Replied at: 10 Jun 2010
Rate Answer
Comment or provide your answer to this question
No comments have been added to this question "What is the area of the square when a diagonal is given ?".
Ask a New Question

Find out more about Maths

Maths Questions and Answers

geometry Questions and Answers

Next question: quantitative methods

Become a Member! It's Free >>>

Share on Facebook: On Twitter: TwitterTweet this!

Question Keywords

diagonal  given  square  area  

More Questions:

Quantitative Methods
2 Decorators, 8 Days Two Paint A House
There Are 9 Boys And 15 Girls In A Class. 2 Students Are Chosen At Random 1 After The Other Without Replacement. Find The Probability That 1) Both Are Girls 2) They Are Of The Opposite Sex
Currency Calculation
Product Help Help Helpi Have -7 -4 -3 -1 2 4 6 Using 2 Of Them Waht Is The Product Of 4????