Unit-5: Geometry and Co-ordinate Geometry
(a) Quadrilaterals, parallelogram and their properties
(b) Circles
(c) Co-ordinate geometry
Q1.
Write the coordinate of a point whose abscissa is -3 and ordinate is 2.
(a) (-3,0) (b) (-3,2) (c) (2,3) (d) (2,0)
Solution.
(b) (-3,2)
Note : abscissa represents x - coordinate. ordinate represents y - coordinate.
Solution
Q2.
The perpendicular distance of the point p(7,9) from the y-axis .
(a) 7 (b) 9 (c) 0 (d) 2
Solution.
(a) 7
Solution
Q3.
The point p(x,y) lies in the 2nd quadrant, which is greater x or y.
(a) y (b) x (c) x=y (d) None
Solution.
(a) y
Note : ordinate (y) is positive and abscissa is negative .
Solution
Q4.
Find the area of triangle which is formed by points A(0,0), B(0,4) and C(6,0) .
(a) 12 unit (b) 24 unit (c) 6 unit (d) 8 unit
Solution.
(a) 12 unit
Area of triangle = 1/2 x base x height
Solution
Q5.
The region between arc and two radii is called __________ .
(a) radius (b) diameter (c) sector (d) chord
Solution.
(c) sector
Solution
Q6.
(i) Circles having the same centre are called concentric circles.
(ii) The circles having same radii are congruent.
which statement is right .
(a) only (i) (b) only (ii) (c) both (d) none of these
Solution.
(c) both
Solution
Q7.
How many circles passing through three non-collinear points.
(a) four (b) three (c) two (d) one
Solution.
(d) one
Solution
Q8.
Angle in a semicircle is a __________ angle.
(a) 500 (b) 600 (c) 750 (d) 900
Solution.
(d) 900
Solution
Q9.
In an parallelogram ABCD in which diagonals AC and BD intersect at o. If area of parallelogram ABCD is 80 cm2 the find area of
triangle OAB .
(a) 10cm2 (b) 20cm2 (c) 30cm2 (d) 40cm2
Solution.
(b) 20cm2
Solution
Q10.
D and E are the mid points of BC and AD respectively of ▵ABC. If area of ▵ ABC = 48cm2 find area
of triangle EBD.
(a) 15cm2 (b) 12cm2 (c) 10cm2 (d) 24cm2
Solution.
(b) 12cm2
Solution
