Question

starting
3. The width of a rectangle is 5 cm and its diagonal is 13 cm.
What is its perimeter?
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Answer 1

Answer:

believe me that the perimeter is 34 cm.

Step-by-step explanation:

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Answer 2

Answer:

34 cm

Step-by-step explanation:

diagonal =13 cm

width = 5cm

so diagonal=√l^2+b^2

13cm=√l^2+(5cm)^2

(13cm)^2=l^2+25cm^2

169cm^2=l^2+25cm^2

l^2+25cm^2=169cm^2

l^2=169cm^2-25cm^2

l^2=144cm^2

l=√144cm^2

l=√12*12cm*cm

l=12cm

Now length is 12cm

and breadth is 5cm

perimeter is 2(l+b)

2(12cm+5cm)

2(17cm)

34cm