SOLUTION: Find area of the isosceles triangle. Sides are sqrt of 11 and the base is 3

Algebra ->  Triangles -> SOLUTION: Find area of the isosceles triangle. Sides are sqrt of 11 and the base is 3      Log On


   



Question 828408: Find area of the isosceles triangle. Sides are sqrt of 11 and the base is 3
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
---
sqrt(11) = sqrt( (3/2)(3/2) + hh )
11 = (3/2)(3/2) + hh
hh = 44/4 - 9/4
hh = 35/4
h = sqrt( 35/4 )
h = 2.958039891549808
---
a = (1/2)bh
a = (1/2)*3*sqrt( 35/4 )
a = 4.437059837324712
---
answer:
area = 4.4 sq.units
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php