<h3>Formulae Used :- </h3>
<u>Circumference of Circle :- </u>
<u>Value of π (pi) = </u>
<h2><u>A</u><u>n</u><u>s</u><u>w</u><u>e</u><u>r</u><u> </u><u>:</u><u>-</u><u> </u></h2>
9) C = 2πr = 2 × 3.14 × 4
≈ 25.13274
10) C = 2πr = 2 × 3.14 × 7.2
≈ 45.23893
11) C = 2πr = 2 × 3.14 × 10
≈ 62.83185
12) C = 2πr = 2 × 3.14 × 3.6
≈ 22.61947
13) Given :-
Diameter : 8m
Radius = half of D = 4 cm
⇢C = 2πr = 2 × 3.14 × 4
≈ 25.13274
14) Radius = 6 cm
C = 2πr = 2 × 3.14 × 6
≈ 37.69911
15) C = 2πr = 2 × 3.14 × 7.1
≈ 44.61
16) C=2πr=2× 3.14 × 5.2
≈ 32.6
2R or the radius of a circle times 2
Answer:
the initial height of water.
Step-by-step explanation:
when time equals zero, no water has been drained.
the volume of the tank is unknown however the volume in the tank is 12 at time zero
Answer: 1/8
Step-by-step explanation:
Hypotenuse = √97
One leg = 4
By Pythagoras theorem, second leg² = (√97)² - 4²
= 97 - 16 = 81
So second leg = 9
Area of triangle = 4 x 9 / 2 = 18 sq inch
One sq foot = 144 sq inch
So required fraction = 18/144 = 1/8
Answer:
Well if it made sense..
Step-by-step explanation:
