Question

16. If each side of a square is hange in its area? 17. Find the side of a square whose area is 169 cm.​

Answer 1

Area of square is 169cm2.

Let a be side of square.

Area = a2=169

a2=(13)2

[a=13 cm.]

side of square is 13 cm

Answer 2

Answer:

The length of DE is 22 cm

Step-by-step explanation:

Given triangle ABC similar to triangle DEF and  and  

also AB=26 cm

If ΔABC and ΔDEF are similar then by similar triangle theorem which states that if two triangles are similar then ration of their areas is the square of the ratio of their sides.

⇒  

⇒  

⇒  

⇒ DE=22 cm

The length of DE is 22 cm

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