Grade 8 November CP : Mensuration

The formula to find the curved surface area of a right circular cylinder =

• $\pi r^2$

• $\pi r^2h$

• $2\pi rh$

• $2\pi r\left(h+r\right)$

Fill in the blanks:
1 m² = ___________ cm²

• 100
• 10000
• 1000
• 500

Say 'TRUE' or 'FALSE'
The perimeter of square of area 36 cm² is 24 cm.

• TRUE
• FALSE

The side of a square whose perimeter is 64 cm is __________

• 32 cm
• 8 cm
• 16 cm
• 12 cm

Choose the correct formula to find the area of rectangle.

• $l\times b\times h$

• $\frac{b\times h}{2}$

• $l\times b$

 $l\times l\$  This formula is to find area of 

• square

• trapezium

• traingle

The side of a cube whose surface area is 600 cm² is____

• 10 cm
• 10 cm²
• 60 cm
• 6 cm

1. What is the area of a rhombus if the lengths of the diagonals are 12cm and 14cm?

• 84cm

• 54cm

• 24cm^2

• 84cm^2

Area of trapezium is equal to

• $base\ \times\ height$

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

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

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

Lateral surface area of cube , whose side measures 5 cm, is

• $150\ cm^2$

• $125\ cm^2$

• $25\ cm^2$

• $100\ cm^2$