Question

a square water tank has its each side equal to 40 m . there are four semi circular grassy plots all around it . find the cost of turfing the plot at ₹1.25 per sq.m.

( HINT ) :- Use π = 3.14




plz no spam !​

Answer 1

Answer:

i hope above attachment will help u alot

Answer 2

Answer:

$\huge{\mathcal{\underline{\Blue{꧁AnSWeR꧂}}}}$

☘︎Given side of square tank =40m

☘︎Radius of semicircular plot

$= \frac{side}{2} = \frac{40}{2} = 20$

➪Area of 1 semicicular grassy plot

$= \frac{πr {}^{2} }{2}$

$= \frac{\pi \times 20 {}^{2} }{2} = \frac{400\pi}{2} = 200\pi$

꧁Area of 4 semicircular plot 4×200π=800π cm²꧂

➪Rate of Turfing the plot

➪Rs.1.25 per sq.m

➪➪cost of turfing the plot= Area of 4 semicircular grassy plot ×cost

➪800π×1.25=800×3.14×1.25

➪Rs.3140