#### If the lengths of diagonals of a rhombus is doubled, then area of rhombus will be

(a) doubled

(b) tripled

(c) four times

(d) remains same

**Solution:**

#### If the length of a diagonal of a quadrilateral is 10 cm and lengths of the perpendiculars on it from opposite vertices are 4 cm and 6 cm, then area of quadrilateral is

(a) 100 cm^{2}

(b) 200 cm^{2}

(c) 50 cm^{2}

(d) none of these

**Solution:**

#### Area of a rhombus is 90 cm^{2}. If the length of one diagonal is 10 cm then the length of other diagonal is

(a) 18 cm

(b) 9 cm

(c) 36 cm

(d) 4.5 cm

**Solution:**

**More Solutions:**

- In the adjoining figure, ABCD is a square grassy lawn of area 729 m2.
- Each side of a rhombus is 13 cm and one diagonal is 10 cm. Find
- Find the area of a rhombus whose side is 6.5 cm and altitude is 5 cm.
- From the given diagram, calculate the area of trapezium ACDE
- The perimeter of a trapezium is 52 cm. Find the area of the trapezium.
- From the adjoining sketch, calculate the length AD