Medium Math Class 9 Level 5

A rectangle has perimeter 98 cm and length 31 cm. What is its breadth?

आयत का परिमाप 98 cm और लंबाई 31 cm है तो चौड़ाई कितनी होगी?

A) 16 cm / 16 cm B) 18 cm / 18 cm C) 20 cm / 20 cm D) 22 cm / 22 cm
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Correct Answer

B. 18 cm / 18 cm

Explanation

2(l + b) = 98 so l + b = 49 and b = 49 - 31 = 18 cm.

2(l + b) = 98 इसलिए l + b = 49 और b = 49 - 31 = 18 cm।

Related Questions

Easy Math Class 10 Level 1

What is the area of a circle with radius 7 cm when π = 22/7?

7 सेमी त्रिज्या वाले वृत्त का क्षेत्रफल कितना होगा जब π = 22/7 हो?

A. 44 सेमी² / 44 cm² B. 77 सेमी² / 77 cm² C. 154 सेमी² / 154 cm² D. 308 सेमी² / 308 cm²
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