find the value curved surface area the total surface area of a cone whose height and slant are 6 cm and 10 cm respectively (take r 3.14
Answers
Step-by-step explanation:
Height of the cone = 6cm Slant height of the cone b= 10cm We know that Radius of the cone = √(l2 – h2) By substituting the values Radius of the cone = √(102 – 62) On further calculation Radius of the cone = √(100 – 36) = √ 64 So we get Radius of the cone = 8cm We know that Volume of the cone = 1/3 πr2h By substituting the values Volume of the cone = 1/3 × 3.14 × 82 × 6 On further calculation Volume of the cone = 401.92 cm3 We know that Curved surface area of a cone = πrl By substituting the values Curved surface area of a cone = 3.14 × 8 × 10 So we get Curved surface area of a cone = 251.2 cm2 We know that Total surface area of cone = πr (l + r) By substituting the values Total surface area of cone = 3.14 × 8 × (10 + 8) On further calculation Total surface area of cone = 3.14 × 8 × 18 So we get Total surface area of cone = 452.16 cm2Read more on Sarthaks.com - https://www.sarthaks.com/721573/find-volume-curved-surface-area-total-surface-area-cone-whose-height-slant-height-100cm-take?show=721577#a721577