Rectangular 7801

The length of the sides of the rectangular garden is 4:3. The junction of the centers of adjacent sides is 20 m long. Calculate the area of the garden.

Correct answer:

S =  768 m2

Step-by-step explanation:

a:b = 4:3 3a/4 = b  (a/2)2+(b/2)2 = 202 (a/2)2+(3a/8)2=202  0.390625a2400=0 a1,2=±400/0.390625=±32 a1=32 a2=32  a=a1=32 m b=3 a/4=3 32/4=24 m  S=a b=32 24=768 m2

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