lenght of a rectanular garden is 10 m and its breadth is 8m . if a road of uniform width of xmeter is surrounded outside the park . find the area of the road in term of x
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Answer:
(20 +16x + 4x^2)
Step-by-step explanation:
the area of the garden including road = lb
= {(10+2x)(8+2x)}m^2
= {80 + 20 + 16x + 4x^2}m^2
= (100 + 16x + 4x^2)m^2
the are of the garden = lb
= 10m * 8m = 80m^2
area of the road = the area of the garden including road - the area of the garden = {(100 + 16x + 4x^2) - 80}m^2
= {100 + 16x + 4x^2 -80}m^2
= (20 + 16x + 4x^2)m^2
shailjasrivastava:
your answer is wrong
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