The document contains 4 geometry word problems. The first asks to find the area of the shaded portion where three unit circles intersect such that the center of each circle is the intersection of the other two. The second asks to find the area of a circle inscribed within the space enclosed by three semicircles drawn on a line segment with its midpoint. The third asks to find the area of a shaded region bounded by arcs drawn from the vertices of a triangle with given side lengths and radii of 5cm each. The fourth asks to find the area of a design on a circular table cover that leaves an equilateral triangle in the middle.
Matatag-Curriculum and the 21st Century Skills Presentation.pptx
CLASS IX MATHS
1. Q. The centre of each of three unit circle is an intersection of
remaining two as shown. Find the area of shaded portion.
2. • Q. AB is a line 48 cm in length and C is its
middle point. On AB,AC,CB semi circles are
described.Find area of the circle inscribed in
the space enclosed by three semi circles.
3. Q. With vertices A,B and C of a triangle ABC as centres , arcs are
drawn with radii 5cm each. If AB=14cm, BC=48cm and CA=50cm,
then find area of the shaded region.
4. • Q. On a circular table cover of radius 32 cm, a
design is formed leaving an equilateral
triangle ABC in the middle. Find area of the
design.
