ch14 Mensuration class 8th

1.A parallelogram has one side 18 cm and its distance from the opposite side is 8 cm. The area of the parallelogram is

• 
  

  $120cm2^{ }$

• $72\ cm^2$

• $144\ cm^2$

• $100\ cm^2$

2 .sum of parallel sides of a trapezium is 26m and its area is 156 square metres , then distance between the parallel side of the trapezium is

• 14 m

• 13 m

• 12 m

• 11 m

Tags

CCSS.8.EE.C.7

Area of a trapezium is 110 square metre and its height is 11 m. If one of the parallel side is 7 m then other parallel side is   

• 10 m

• 11 m

• 12 m

• 13 m

Tags

CCSS.8.EE.C.7

The cross section of a canal is in the form of a trapezium . If the top of the canal is 12 m wide, bottom is 8 m wide and area of cross section is 60 square metres then the depth of canal is

• 8 m

• 6 m

• 4 m

• 2 m

The area of trapezium is 24 square metres . If its height is 6 m then sum of its parallel sides is

• 4 m

• 6 m

• 8 m

• 2 m

The parallel sides of a trapezium are in ratio 3:5 and the perpendicular distance between them is 12 cm. If the area is 384 sq.cm, then the smaller parallel side is

• 16 cm

• 20 cm

• 24 cm

• 28 cm

Area of trapezium is equal to

• $base\ \times\ height$

• $\frac{1}{2}\ \times base\times height$

• $\frac{1}{2}\times\left(a+b\right)\times h$

• $\frac{1}{2}\times d\times\left(h_1+h_2\right)$

A rectangular piece of paper 22 cm long and 12 cm broad is rolled along its length to form a cylinder , then height of the cylinder is

• 12 cm

• 22 cm

• 6 cm

• 11 cm

Tags

CCSS.8.G.C.9

Find the number of edges of a polyhedron having 20 faces and 12 vertices.

• 32

• 30

• 28

• 26

If volume of a cylinder is halved , its volume will be -

• $\frac{1}{2}times$

• $\frac{1}{3}times$

• 2 times

• 3 times