1. Find the perimeter and area of the
combaund figures given below [+= 2 2 2
☺
CH
3.5em
6cm
10cm
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Answer:
Step-by-step explanation:
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Radius of cone = radius of cylinder = radius of hemisphere = 3.5cm
height of cylinder = 6.5cm
height of cone = 12.8 - 6.5 = 6.3cm
Volume of Solid = Volume of cone + Volume of cylinder + Volume of hemisphere
=1/3πr^2h + πr^2h + 2/3πr^3
=πr^2(1/3h + h + 2/3r)
=22/7×3.5×3.5 (1/3×6.3 + 6.5 + 2/3×3.5)
=385/10 (21/10 + 65/10 + 23.33/10 )
=385/10 × 109.33/10
=42092.05/100
=420.92cm^3
Volume of Solid is 420.92 cm^3.
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