Question

find the perimeter of a rectangle whose one side measure 20m and the diagonal is 29m.​

Answer 1

Answer:81m

Step-by-step explanation:

Let the length be x

Breadt(b)=20m

Diagonal(d)=29m

d^2=x^2+b^2

29^2=x^2+20^2

841=x^2+400

841-400=x^2

441=x^2

x=21

Length=21

Perimeter of rectangle =2 (l+b)

=2 (20+21)

=2×41

=81m

Answer 2

Answer:

perimeter of a rectangle

Step-by-step explanation:

2(l+b)

2(20+29)

2(49)

98