the area of a right angled isosceles triangle whose hypotenuse is 8metres?
(a) 64 sq. m .
(b) 128 sq .m .
(c) 256 sq.m .
(d) 32 sq. m .
An equilateral triangle is formed by joining
the midpoints of three sides of another equilateral triangle of side 8 metres.
What is the area of the smaller equilateral triangle? .
The base and altitude of a parallelogram are
12 cm and 8 cm respectively. What is its area? .
(a) 192 cm2
(b) 48 cm2
(c) 36 cm2
(d) 96 cm2
Two adjacent sides of a rectangle are in the
ratio 3 : 11. If its area is 132 square metres, then what is its perimeter? .
(a) 28 m
(b) 56 m
(c) 112 m
(d) 14 m
If each of any two opposite sides of a square
is increased by one cm and each of the other two sides is decreased by one cm,
we obtain a rectangle whose area is 63 cm2. What is the perimeter of
the original square? .
(a) 36 cm
(b) 32 cm
(c) 28 cm
(d) 44 cm
the area of a regular hexagon whose side measures 4 cm?
Three circles of diameter 6 cm each are bound
together by a rubber band as shown in figure. Find the length of the rubber
band (in cm) if it is stretched as shown below. .
(a) 9(p + 2)
(b) 6(p + 3)
(c) 18(p + 2)
(d) 3(p + 2)
Find the area of the region swept by the hour
hand of a clock, 3.5 cm long, in an interval of 30 minutes. .
The lengths, breadths and volumes of two
cuboids are in the ratio of 4 : 5, 3 : 4 and 2 : 3, respectively. What is the
ratio of their heights? .
(a) 3 : 5
(b) 8 : 15
(c) 2 : 3
(d) 10 : 9
A tube of side one meter length is cut into
small cubes of side 10 cm each. How many such small cubes can be obtained? .