Question

Find the perimeter of the rectangle whose length is 40 cm and a diagonal is 41 cm​

Answer 1

Answer:

perimeter = 89cm

Step-by-step explanation:

perimeter of rectangle(when diagonal is given)=2l + 2√(d²-l²)

given length(l)=40 cm, diagonal(d)=41cm

perimeter=2*40+√(41²-40²) = 80+√(1681 - 1600) = 80 + √81 = 80+9 = 89 cm

Answer 2

Answer:

Refer to the attachment above. ⬆️

hope it helps!!