Question

The surface area of a triangular shape window is 24 sq.m, and height is 6m., then find the base of the triangle, if the cost of glass fitting per sqm is ₹ 250, then find total cost of glass fitting for window.

Answer 1

Let, 

base of the triangular window = b m

Height of the triangular window h= 6m 

Area of triangular window = \(\frac 12\)∙ b ∙ h

= 24 sq.cm 

⇒ 3b = 24

⇒ b = \(\frac {24}{3}\)

= 8 

∴ Base of the triangular window = 8m 

Cost of glass fitting per sq.m = ₹ 250 

Cost of glass fitting per 24 sq.m = 250 × 24 

∴ Total cost of glass fitting for window 

= ₹ 6000/-