D. 1.690 cm 1. What is the volume of a cylinder having a radius of 5 cm and a height of 20 cm? A 1,570 cm B. 1,590 cm C. 1,680 cm 2. Find the volume of a rectangular pyramid having a dimension of 7 cm and 4 cm and with a height of 10 cm A. 90.33 cm B. 93.33 cm3 C. 95.33 cm D. 97.33 cm 3. How much juice can a cylindrical pitcher contain if it is 20 cm high and its radius is 6 cm? A. 2. 190.8 cm; B. 2. 220.8 cm C. 2, 260.8 cm3 D. 2, 290.8 cm 4. A pyramid is 3 m by 3 m at the base and 2 m high. How much air can it contain? A. 3 m. B. 4 m3 C. 5 m D. 6 m 5. Find the volume of a drum having a diameter of 20 cm and a height of 46 cm. A. 14,444 cm B. 24.444 cm C. 47,444 cm D. 57,776 cm
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Answer:
1. A - V=1,570cm³
2. B - V=93.33cm³
3. C - V=2,260.8cm³
4. D - V=6m³
5. A - V=14,444cm³
Step-by-step explanation:
1. V = Πr²h
= 3.14 x (5cm)² x 20cm
= 3.14 x 25cm² x 20cm
= 78.5cm² x 20cm
= 1,570cm³
2. V = lwh/3
= 7cm x 4cm x 10cm / 3
= 280cm³ / 3
= 93.33cm³
3. V = Πr²h
= 3.14 x (6cm)² x 20cm
= 3.14 x 36cm² x 20cm
= 113.04cm² x 20cm
= 2,260.8cm³
4. V = lwh /3
= 3m x 3m x 2m /3
= 18m³ /3
= 6m³
5. V = Πr²h
= 3.14 x (10cm)² x 46cm
= 3.14 x 100cm² x 46cm
= 3.14 x 4,600cm³
= 14,444cm³
Enjoy. Hope it helps.