Question

plz plzplzplzplzplz helpplz​

Answer 1

Answer:

answer is 800

Step-by-step explanation:

40 multiply by 5

=200

then the area of rectangle is 4 multiply by side then, = 200 multiply by 4 then answer is 800

Answer 2

Answer:

The area of the rectangle is :- 64cm^2

Step-by-step explanation:

Let's take breadth as b

Length of the rectangle = (5b - 4)

Perimeter of rectangle = 2 × ( l + b )

40 = 2 × [(5b - 4) + b)]

40÷2 = (5b - 4) + b

20 = (5b - 4) + b

20 - b = 5b - 4

20 = 5b - 4 + b

20 + 4 = 5b + b

24 = 6b

b = 24 ÷ 6

Therefore, b = 4cm

As given, the length is four meters less than five times it's breadth.

So, length = (5 × b) - 4

If we substitute the value of b then,

(5 × 4) - 4

20 - 4 = 16cm

So the length is 16cm and breadth is 4

Area of the rectangle = l × b

= 16 × 4

= 64cm^2

Hope it helps you