Question

please tell fast don't give irrevant answer​

Answer 1

Answer:

Perimeter=142 cm

Step-by-step explanation:

Using Pythogoras Theorum

(Length)² + (Breadth)²=(Diagonal)²

(60)²+(Breadth)²=(61)²

(Breadth)²=(61)²-(60)²

(Breadth)²=3721-3600

(Breadth)²=121

Breadth=√121

Breadth=11

Perimeter=2(Length+Breadth)

Perimeter=2(60+11)

Perimeter=2×71

Perimeter=142cm