A conical tent has base radius 21 m and height 20 m. Canvas costs ₹25 per m². What does the canvas for the tent cost? (π = 22/7)

Question

Accepted Answer

₹47850. l = √(441 + 400) = √841 = 29 m. CSA = 22/7 × 21 × 29 = 66 × 29 = 1914 m². Cost = 1914 × 25 = ₹47850. (₹33000 uses h = 20 instead of l.)

A conical tent has base radius 21 $m$ and height 20 $m$ . Canvas costs ₹25 per $m^{2}$ . What does the canvas for the tent cost? (π = $\frac{22}{7}$ )