Question

(8) एक आयत का क्षेत्रफल 1764 cm, यदि आयत की लम्बाई इसकी चौड़ाई की चार गुनी
है तो आयत की लम्बाई एवं चौड़ाई ज्ञात कीजिए।​

Answer 1

Answer:

width of rectangle (x) = 21cm

length of rectangle (4x) = 4*21 = 84cm

Step-by-step explanation:

area of a rectangle = length * width = 1764 CM

according to question

breadth = x

leangth = 4x

so we get equation

x * 4x = 1764

4x^2 = 1764

x^2 = 1764 /4

x^2 = 441

x = √441

x = 21

width of rectangle (x) = 21cm

width of rectangle (x) = 21cmlength of rectangle (4x) = 4*21 = 84cm