Question

a rectangle has perimeter 90 metre and length is 25 metre find its area​

Answer 1

Answer:

500 square m

Step-by-step explanation:

Perimeter of rectangle= 90 m

Length= 25 m

Perimeter of rectangle = 2(l+b)

90m= 2(25+b)

90m= 50+2b

2b= 90-50

2b=40 m

b= 20 m

Area of rectangle= l×b

Area= 25×20

Area= 500 square m.

Answer 2

GIVEN:

L=25m

Perimeter=90m

SOLUTION:

Perimeter of rectangle= 2× (L+B)

90. =2×(25+B)

90/2. = 25+B

45. -25 = B

20.m =B

AREA= L×B

= 25×20

=500m^2

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