Postal or Sorting Assistants Model Paper 7 With Solutions

Question : 23 of 100

Marks: +1, -0

If the perimeter and diagonal of a rectangle are 14 and 5 cms respectively, find its area.

Solution:

(a) In a rectangle.

\text"(perimeter)^2"/4=\text"(perimeter)^2"+2×

area
⇒

{(14)^2}/4=5^2+2 ×

area
49 = 25 + 2 x area
∴Area =

{49-25}/2=24/2=12 cm^2

Go to Question:

Prev Question

Next Question