Question

The total surface area of a frustum-shaped glass tumbler is (rı >r2)
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Answer 1

Answer:

TSA of frustum=πl(r1+r2)+π(r1²+r2²)

Answer 2

Total surface area of frustum shaped glass tumbler=$\pi(r_1+r_2)l+\pi r^2_2+\pi r^2_1$

Step-by-step explanation:

Let

Radius of upper end of frustum shaped glass tumbler=$r_1$

Radius of lower end of frustum shaped glass tumbler=$r_2$

Slant height of frustum shaped glass tumbler=l

Total surface area of frustum shaped glass tumbler=Curved surface area of frustum shaped glass tumbler+area of circular shaped end

Total surface area of frustum shaped glass tumbler=$\pi(r_1+r_2)l+\pi r^2_2+\pi r^2_1$

By using the formula of

Total surface area of frustum=$\pi(R+r)l+\pi r^2+\pi R^2$

Where R=Radius of upper end

l=Slant height

r=Radius of lower end

#Learn more:

https://brainly.in/question/15955815:answered by Mdtauqeeransari