Hey there! Sign in to join this conversationNew here? Join for free
 You are Here: Home >< Maths

# C1 - Diffrentiation Help Watch

1. Could someone please help on these application questions:

1) The sum of two shorter sides of a right angled triangle is 18cm
a) Calculate the least possible length of the hypotenuse
b) The greatest possible area of the triangle.

----------

I first try to get the two variables as in:
rootx + rooty = 18 , so rootx = 18 - rooty

No clue how to do it but thats how I started off
2. In triangle sum of each two sides must be greater than 3rd side
3. trial and error

try all the numbers that make a total of 18

use pythag to work out hypotenuse, which will be the largest side, and find what the smallest value of the largest side is.

Reply
Submit reply
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: November 28, 2010
Today on TSR

Find out how.

### Want £10K to start a business?

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll
Useful resources

## Make your revision easier

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

Can you help? Study help unanswered threads

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.