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sir which question and pic is not clear
16th
sir but pic is not clear
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sir but when I zoom the words are not visible. hope you understand
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Solution :
16 ) Given ,
radius of the circle (r)=3.5cm
length of the side of a
equilateral (a) =7cm
i) Area of the circle = πr²
ii ) Area of the equilateral
triangle = (√3/4 )a²
iii ) Area of the shaded
region = Area of the major
sector + Area of the
equilateral - area of the
minor sector
= (300/360)πr²+(√3/4)a²
- (60/360)πr²
= (5/6)πr²+(√3/4)a²
- (1/6)πr²
= [5/6 - 1/6]πr² +(√3/4)a²
= (4/6)πr² + (√3/4)a²
= (2/3)πr²+(√3/4)a²
= (2/3)(22/7)(3.5)²
+ (1.73/4)×7²
= 25.67 + 21.1925
= 46.8615 cm²
••••
16 ) Given ,
radius of the circle (r)=3.5cm
length of the side of a
equilateral (a) =7cm
i) Area of the circle = πr²
ii ) Area of the equilateral
triangle = (√3/4 )a²
iii ) Area of the shaded
region = Area of the major
sector + Area of the
equilateral - area of the
minor sector
= (300/360)πr²+(√3/4)a²
- (60/360)πr²
= (5/6)πr²+(√3/4)a²
- (1/6)πr²
= [5/6 - 1/6]πr² +(√3/4)a²
= (4/6)πr² + (√3/4)a²
= (2/3)πr²+(√3/4)a²
= (2/3)(22/7)(3.5)²
+ (1.73/4)×7²
= 25.67 + 21.1925
= 46.8615 cm²
••••
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