# Find the area of Rhombus one of whose diagonals measures 8 cm and the other 10 cm ?

Find the area of Rhombus one of whose diagonals measures 8 cm and the other 10 cm ?

A. 47 cm^{2}

B. 34 cm^{2}

C. 40 cm^{2}

D. 64 cm^{2}

**Answer : **C. 40 cm^{2}

## Explanation 1:

Area of triangle formula = 1/2*(base)*(height)

Area of one triangle = 1/2 * (4) * (5)

= 10 cm^{2}.

Total area of rhombus = 4 * area of one triangle

= 4 * 10

= **40 cm ^{2}**

## Explanation 2:

Area of a rhombus is = 1/2 * (length of one diagonal) * (length of another diagonal)

= 1/2 * 8 * 10 cm^{2}

= ** 40 cm ^{2}**