Question

Find the primeter of rectangle having length equal to to 17cm and breadth equal to 8.7 cm.​

Answer 1

Step-by-step explanation:

Perimeter =2(l+b)

2(17+8.7)

2(25.7)

=51.4

Answer 2

Answer:

Using Pythagoras theorem,

BD22 = DC22 + BC22

⇒ 172 = DC22 + 822

⇒ 289 - 64 = DC22

⇒ 225 = DC22

⇒ 15 = DC

Therefore, length of rectangle = 15 cm

So, area of rectangle = l × b

                                   = 15 × 8 cm22

                                   = 120 cm22

Also, perimeter of rectangle = 2 (15 + 8) cm

                                             = 2 × 23 cm

                                             = 46 cm

αnรωε૨ ɓყ ѵα૨µn ∂ɦαωαn..✌