Q. 114.3( 22 Votes )

There is a slide in a park. One of its side walls has been painted in some color with a message “KEEP THE PARK GREEN AND CLEAN.” If the sides of the wall are 15 m, 11 m, and 6 m, find the area painted in color.


Answer :

Given: Sides of the walls are 15 m, 11 m, and 6 m.

To Find: Area painted in color.


Concept Used:


If sides of a triangle are a, b, and c, then area of a triangle is given by:



Where s = semiperimeter of the triangle



Assumption:


Let the sides of the triangle be,


a = 15 m


b = 11 m


c = 6 m


Explanation:




s = 16 m





Area = 20√2 m2.


Hence, the area of wall painted in color is 20√2 m2.


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