Question

the window in form of trapezium whose parallel sides are 105 cm and 50 cm and the distance between parallel sides is 60 cm find cost of class used to to cover the window @ Rupees 15 per square CM​

Answer 1

Answer:

The cost of glass used is Rs. 69750

Step-by-step explanation:

Given:

Length of parallel sides of the window

a= 105 cm and b=50 cm

h= 60 cm

Area of the window

$=\frac{1}{2}*h*(a+b)$

$=\frac{1}{2}*60*(105+50)$

$=30*(155)$

$=4650\:square\:cm$

Cost of glass per square cm = Rs.15

$\therefore$Cost of glass used for the window

=Area of the window * 15

= 4650*15

=Rs. 69750