Question

The Slout height of a cube with radius 15 cm and height 20 cm is​

Answer 1

Answer:

Step-by-step explanation:

radius=15, slant height =???, h=20cm

slant height=√h²+r² =√(15)²+(20)²=√225+400=√625=25cm

Curved surface area of cone=π(r)(l) =3.14×14×25=1099 cm²

total surface area of cone=πr(r+l) =3.14×15×(15+25)=47.1×49=1884cm²

Answer 2

Answer:

slant height = 25 cm

Step-by-step explanation:

according to pythagoras theorem,

slant height = √(radius² + height²) = √(15² + 20²) = √(225 + 400) = √625 =25