1.

If radius of ends of a bucket are 5cm and 15cm and it is 24 cm height then it's surface area is​

Answer»

The surface AREA is 1632.8 cm².

Step-by-step explanation:

Given : If radius of ends of a bucket are 5 cm and 15 cm and it is 24 cm height.

To find : The surface area of bucket ?

Solution :

The bucket is in shape of a frustum,

where, the radius are r_1=5\ cm and r_2=15\ cm

The height is h=24 cm

The SLANT height is given by,

l=\sqrt{(r_2-r_1)^2+h^2}

l=\sqrt{(15-5)^2+24^2}

l=\sqrt{100+576}

l=\sqrt{676}

l=26\ cm

The surface area of the bucket is given by,

SA=\pi(r_1+r_2)l

SA=3.14\times (15+5)26

SA=3.14\times (20)26

SA=3.14\times520

SA=1632.8

The surface area is 1632.8 cm².

#Learn more

The radii of the circular ends of a SOLID frustum of a cone are 18 cm and 12 cm and its height is 8 cm. find its TOTAL surface area

brainly.in/question/6974186



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