Advertisements
Advertisements
प्रश्न
Three semicircles each of diameter 3 cm, a circle of diameter 4.5 cm and a semicircle of radius 4.5 cm are drawn in the given figure. Find the area of the shaded region.
योग
Advertisements
उत्तर
Area of the shaded region = Area of the semi-circle with diameter of 9 cm − Areas of two semi-circles with diameter 3 cm − Area of the circle with diameter 4.5 cm + Area of semi-circle with diameter 3 cm
= Area of the semi-circle with radius of 4.5 cm − 2 × Area of semi-circle with radius 1.5 cm − Area of the circle with radius 2.25 cm + Area of semi-circle with radius 1.5 cm
Thus, the area of the shaded region is 12.375 cm2.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
