Question

the dimension of a Courtyard were measured with a metre stick and hence its area was found that to be 400 square metre later on it was declared that the length of the mistake actually measure 90 cm and not 1 m find the correct area of the courtyard

Answer 1

$\huge\mathfrak\orange {Hello\:Mate}$

$\huge\boxed{\large\boxed{\large\boxed{\blue{♡ANSWER♡}}}}$

90cm = 0.9 m Corrected area = (0.9 × 0.9) × 400 = 0.81 × 400 = 324 sq.m

$\huge\mathbb\green {♡Jai\:Hind♡}$

$<Marquee> ♡♡♡I HOPE IT HELPS YOU♡♡♡</Marquee>$

Answer 2

the correct area of the courtyard = 324 m²

Step-by-step explanation:

Area of Courtyard measured and found to be = 400 m²

Meter Stick measured  90 cm(0.9 m)  instead of  1m

=> When Stick measured 1 m actual size = 0.9 m

=> When Area calculated 1 m² then actual area = 0.9 * 0.9 = 0.81 m²

=> When area calculated 400 m² then actual area = 400 * 0.81

= 324 m²

the correct area of the courtyard = 324 m²

Learn more:

14 tiles of size 2 dm into 2dm are required to pave a rectangular ...

https://brainly.in/question/13821840