Please answer the question
Answers
Step-by-step explanation:
1. Area of the rectangular field = length*breadth
= 10cm*7cm
= 70 cm²
2. Area of a semi circle = ½πr²
= ½ * 22/7 * (7/2)²
= 11/4 cm²
= 2.75 cm²
3. Area of the one semi circular portion
= 2.75 cm²
Cost of manuring per sq cm = Rs. 4
Therefore, cost of manuring 2.75 cm² = 2.75*4
= Rs.11
4. Area of portion where we can grow wheat =
area of the whole rectangular plot - area of the two semicircular plots
Therefore, Area where he can grow wheat
= 70 cm²- (2* 2.75 cm²)
= 70 cm² - 5.5 cm²
= 64.5 cm²
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