Question

2) find the perimeter of the rectangle, whose length is 24 cm and diagonal is 26 cm​

Answer 1

Step-by-step explanation:

Let the length of breadth be b.

Write the formula to calculate the diagonal of rectangle.

d=

b

2

+h

2

(1)

Substitute the values in equation (1).

30=

b

2

+(24)

2

Solve for b.

b

2

=900−576

b

2

=324

b=±18

Since the breath cannot be negative. So, neglect the negative value of breadth. Hence, the breadth of the rectangle is 18 cm.

Write the formula to calculate perimeter of rectangle.

P=2(l+b) (2)

Substitute the values in equation (2).

P=2(24+18)

=2(42)

=84

Thus, the perimeter of rectangle is 84 cm.

Answer 2

Step-by-step explanation:

perimeter of rectangle=2 (length+width)

=2(24+26)

=100cm