Question

-2. The triangular side walls of a flyover have been used for advertisements.
the walls are 122 m. 22 m and 120 m (see Fig. 12.9). The advertisemen yield an
earning of 5000 per m per year. A company hired one of its walls for 3 months. ​

Answer 1

This is your answer

Answer 2

Answer:

S=122+22+120/2

=132m

Area=√S(S-a)(S-b)(S-c)

=√132(132-122)(132-120)(132-22)

=√132×10×12×110

=√11×12×10×12×11×10

=11×12×10

=1320m²

=1320×5000×3/12

=330×5000

=165000rupees