A toy is made by mountaining a cone on hemisphere. The radius of the cone and the hemisphere is 5 cm. The total height of the toy is 17cm. Find the total surface area if toy
Answers
Answered by
0
radius of base of cone =5cm
radius of hemisphere =5cm
Total height of toy=17cm
height of cone=17-5=12cm
Slaint height of cone=√(5)²+(12)²
=√25+144
=√169
=13cm
then ,
total surface area of toy=curved surface area of hemisphere+curved surface area of cone
=2π(5)²+π(5)²(13)
=50π+325π
=375π
=375×22/7
=53.571×22
=1178.562cm
radius of hemisphere =5cm
Total height of toy=17cm
height of cone=17-5=12cm
Slaint height of cone=√(5)²+(12)²
=√25+144
=√169
=13cm
then ,
total surface area of toy=curved surface area of hemisphere+curved surface area of cone
=2π(5)²+π(5)²(13)
=50π+325π
=375π
=375×22/7
=53.571×22
=1178.562cm
Similar questions