Mensuration

What is the formula to find the area of a rhombus?

• length x breadth

• product of diagonals

• 1/2 x product of diagonals

• 1/2 x length x breadth

Find the area of a rhombus whose diagonals are 12 cm long.

• 144 cm

• 72 cm²

• 24 cm

• 72 mm²

A triangle has a base of 6 cm and height of 4 cm, FInd the area of the triangle.

• 10 cm

• 24 cm²

• 12 m²

• 12 cm²

Find the area of this right - angled triangle.

• 14 cm

• 24 cm²

• 24 m²

• 48 cm²

Which of the following is the correct formula to find the perimeter of a rectangle?

• (Side)²

• Length x Breadth

• 2(Length + Breadth)

• 4(Side)

What is the correct formula to find the area of a trapezium?

• Sum of parallel sides x Height

• 1/2 x Sum of parallel sides x Height

• Length x Breadth

• Base x Height

What is the area of a right-angled triangle whose perpendicular sides are 7 cm and 6 cm respectively?

• 13 cm

• 21 cm²

• 21 m

• 42 cm²

Find the side of a square whose perimeter is 60 cm

• 12 cm

• 15 cm

• 16 cm

• 20 cm