The perimeter of an isosceles triangle is 16cm. The length of the base of the triangle is x+4 and that of the other two sides is x+3. Find the area of the triangle

16=2(x+3)+(x+4)16=2x+6+x+46=3xx=2 - Therefore the base has length 6
a=6y/2 - where y is the perpendicular heighty^2=5^2-3^2y^2=25-9y^2=16y=4
Therefore a=(6*4)/2 a=12 cm^2

PF
Answered by Philip F. Maths tutor

3820 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Find the equation of a line which goes through the points (1,0) and (2,5) in the form of y=mx+c


What is the difference between simple and compound interest?


Solve the equation 18x^2-3x=6


How to complete the square to find the value of x?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences