10.) The volume of a conical tent is 1232 m' and the area of the base floor is
154 m2. Calculate the :
i) radius of the floor
Answers
Answered by
3
Answer:
Volume of conical tent = ⅓πr²h
Area of circular base = πr²
Area of circular base, πr² = 154 m²
1232 m³ = ⅓ × 154 m²
24 m = height
154 m² = πr²
154 m² × 7 / 22 = r²
49 = r² = 7
l = √( r² + h² )
= √( 7² + 24² )
= √625 = 25 cm
Curved surface area of cone = πrl
= 22/7 × 7 × 25 m² = 550 m²
So 550 m² canvas must be used,
Length × width = 550 m²
Length × 2 m = 550 m²
Length = 275 m
Answered by
0
area of base is the area of a circle.
area of circle = πr²
here, 154m² = πr²
154 = (22/7)r²
(154 x7)/22 = r²
r² = 49
r = √49
r = 7m
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