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Q. 24. Construct an isosceles triangle whose base is 9 cm and altitude is 5 cm. Then construct another triangle whose sides are 3/4of the corresponding sides of the first isosceles triangle.

Sol.

Given ABC is an isosceles , in which base
BC = 9 cm and altitude AD = 5 cm .
A′BC′is the required .

Q. 25. In a circular table cover of radius 70 cm, a design is formed leaving an equilateral triangle ABC in the middle as shown in Fig. 5. Find the total area of the design.

[ Use = 1.73, = ]

Mathematics 2009 Question Papers Class X
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					Set 2		Set 2
					Set 3		Set 3