KnowledgeBoat Logo
|

Mathematics

Area of a rhombus is 360 cm2. If one diagonal of it is 20 cm; the other diagonal is :

  1. 24 cm

  2. 18 cm

  3. 40 cm

  4. 36 cm

Mensuration

10 Likes

Answer

Given:

Area = 360 cm2.

One diagonal = 20 cm

Let d be the other diagonal.

Area of rhombus = 12\dfrac{1}{2} x product of diagonals

12\dfrac{1}{2} x 20 x d = 360

⇒ 10 x d = 360

⇒ d = 36010\dfrac{360}{10}

⇒ d = 36 cm

Hence, option 4 is the correct option.

Answered By

6 Likes


Related Questions