Saved Bookmarks
| 1. |
The area of an equilateral triangle ABC is `17320. 5 c m^2`. With each vertex of the triangle as centre, a circle is drawn with radius equal to half the length of the side of the triangle (see Fig. 12.28). Find the area of the shaded region. (`U |
|
Answer» side of triangle=2r area of triangle=`sqrt3/4r^2=17320.5` `r^2=100^2` r=100 area(shaded)=area triangle -3 area(sector)=`17320.5-3*(60/360)*3.14*100^2`=`1620.5 cm^2` |
|