(a) none of te length of a rectangle is 4m and the length of its diago

1.	(a) none of te length of a rectangle is 4m and the length of its diagonal is 5m, then the area(a) 12 m(b) 14 m2(c) 16 m2(d) none of t
Answer» By pythagorus theorem, (breadth)² +(length)²=(diagonal)² (breadth)²+4²=5² breadth=√25-16 breadth=3m Perimeter of rectangle=2(length+breadth) =2(4+3) =2×7=14m area of rectangle=length×breadth =4×3 =12 m²

(a) none of te length of a rectangle is 4m and the length of its diagonal is 5m, then the area(a) 12 m(b) 14 m2(c) 16 m2(d) none of t

Answer»

By pythagorus theorem,

(breadth)² +(length)²=(diagonal)²

(breadth)²+4²=5²

breadth=√25-16

breadth=3m

Perimeter of rectangle=2(length+breadth)

=2(4+3)

=2×7=14m

area of rectangle=length×breadth

=4×3

=12 m²