Question

Find the length of the diagnosis of a rectangle whose side are 30 cm and 40 cm. ​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

50 cm

Step-by-step explanation:

• let the length of diagonal be a.
• by right angle triangle rule

• ${a}^{2} = {40}^{2} + {30}^{2}$
• ${a}^{2} = 1600 + 900$
• ${a}^{2} = 2500$
• a = √2500
• a = 50 cm