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Marina86 [1]
3 years ago
9

The perimeter of ABCD is 26 cm The area of PQRS is 45 cm(squares)Find the length of AB

Mathematics
2 answers:
Oksanka [162]3 years ago
7 0
Area of rectangle= LxW
45cm2 divided by 10cm = 4.5cm
B-C= 4.5cm
Perimeter of rectangle= L+W x2
26/2 =13cm -4.5= 8.5cm
sammy [17]3 years ago
4 0
QR = 10cm and the area of that rectangle is 45cmsq so to work out PQ you do 45/10 = 4.5cm
PQ= 4.5cm

As BC = PQ they both equal 4.5cm

and the perimeter of ABCD is 26cm you so 26- (4.5x2) = 17
and 17/2 = 8.5cm

AB is 8.5cm
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