CBSE X CONSTRUCTIONS (Maths) Division of a Line Segment ,Construction of Tangents to a Circle,To construct a triangle similar to a given triangle as per given scale factor,To construct the tangents to a circle from a point outside it. You will learn to do the following constructions : 1. To divide a line segment in a given ratio. 2. To construct a triangle similar to a given triangle as per given scale factor which may be less than or may be greater than 1. 3. To construct tangent at a point on a given circle. 4. To construct the pair of tangents from an external point to a circle Q. Draw a circle of radius 3.2 cm. Take a point P on this circle and draw a tangent at P.(using the centre) Given: Radius of the circle = 3.2 cm.
Steps of construction(i) With O as the centre draw a circle of radius 3.2 cm. (ii) Take a point P on the circle and join OP. (iii) Draw an arc of a circle with centre at P cutting OP at L. (iv) Mark M and N on the arc such that m(arc L M ) = m(arcMN) (v) Draw the bisector PT of the angle <MPN (vi) Produce TP to Tlto get the required tangent T'PT. 10th Geometry topic -Construction [Guess Question paper for CBSE Board] Download File
2 Comments
muchi
28/2/2012 03:40:39 am
too good
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sangeetha
28/2/2012 03:41:35 am
u r correct!!!!!!
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