mensuration

The sum of lengths of all sides of plane figure is called its____

• Area
• Perimeter
• Boundary
• None of the above

• 24 cm
• 24 cm²
• 25 cm
• 25 cm²

work out the perimeter of this shape

• 29cm

• 23cm

• 35cm

• 34cm

Q3 The temperature at the foot of a mountain is +5*C. It fell down by 10*C at the top of the mountain. The temperature recorded on the top is:

The area of rhombus whose diagonals are of lengths 10 cm and 8.2 cm

• 41 cm sq.

• 40cm sq.

• 410 cm sq.

• 820 cm sq.

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

• 32 cm
• 8 cm
• 16 cm
• 12 cm

FIND THE Find the distance travelled by Shaina if she takes three rounds of a square park of side 70 m.

Pinky runs around a square field of side 75 m, Bob runs around a rectangular field with length 160 m and breadth 105 m. Who covers more distance and by how much?

Answer explanation

Distance covered by Pinky in one round = Perimeter of the square = 4 × length of a side = 4 × 75 m = 300 m Distance covered by Bob in one round = Perimeter of the rectangle = 2 × (length + breadth) = 2 × (160 m + 105 m) = 2 × 265 m = 530 m Difference in the distance covered = 530 m – 300 m = 230 m. Therefore, Bob covers more distance by 230 m.

The area of a rectangular piece of cardboard is 36 sq cm and its length is 9 cm. What is the width of the cardboard?

: Mukesh wants to cover the floor of a room 3 m wide and 4 m long by squared tiles. If each square tile is of side 0.5 m, then find the number of tiles required to cover the floor of the room.