Area of parallelogram is 36m2. If the
length of its altitude is 4m, what is its base?
a) 6 m
b) 32 m2
c)18 m
d) 9 m
Solution:Area = (Base × Altitude)
36= Base × 4 Base × 4= 36 Base = 36/4 Base = 9 m
A garden is square shaped. If the length of one of its sides is 5.2 meter, find its perimeter.
a) 18.8 m
b) 20.8 m
c) 22.8 m
24.8 mA conference hall is 8.5 m long and 6.4 m wide. A carpet is laid in the hall. Length and breadth of the carpet are 8 m and 5.9 m respectively. Find the area of the uncovered place of the conference hall.
a) 7.2 m2
b) 9.2 m2
c)11.2 m2
Solution:Area of hall= 54.4 m2
Area of carpet = 47.2 m2
Area of uncovered place = 54.4 ̶ 47.2 =7.2m2
A square shaped park is 170 m long. A road 6 m wide has been constructed along the outer side of the boundary. Find the area of the road.
a) 28900 m2
b)33124 m2
c) 4224 m2
d)4672 m2
Solution:Area of square park= 28900 m2
Length of outer square = 170 + 6 + 6 =182
Area of outer square = 33124 m2 Area of the road= 33124–28900 = 4224 m2
A park is 110 m long and 96 m wide. In the middle of the park two roads, 4 m wide parallel to its sides are constructed. Find the area of the roads.
a) 440 m2, 384 m2
b)332 m2,288 m2
c)542 m2, 432 m2
d)331 m2,272 m2
Solution:Area of park= 10560 m2
Area of the road parallel to the length= 110 × 4 = 440 m2
Area of the road parallel to the length= 96 × 4 = 384 m2
Find the area of triangle which base is 10 cm and height is 4cm.
a) 10 cm2
b)20 cm2
c)30 cm2
