Question

the curved surface area of a cone is 4070 CM square and its diameter is 70 cm what will be its slant height

Answer 1

Answer:

Step-by-step explanation:curved surface area of cone = ¡¡rl=4070

r=35cm

22/7×35×l=4070

L=37cm

Answer 2

$\huge\underline \mathbb {SOLUTION:-}$

Answer:

• The slant height of cone = 37 Cm

Given:

• The C.S.A of cone = 4070 cm²
• Diameter of cone = 70 cm

Need To Find:

• The slant height of cone = ?

Explanation:

Radius of cone = Diameter/2

➠ 70/2

➠ 35 cm

Curved surface area of a cone is = π rl

➠ π rl = 4070

➠ 22/7 × 35 × L = 4070

➠ 22 × 5 L = 4070

➠ 110 L

➠ L = 4070/110

➠ L = 37cm

Hence:

• The slant height of cone = 37 Cm

$\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$