Question

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Plzzzzzz guys give me a answer on this question ⁉️............ ​

Answer 1

Answer:

1.side of triangle =a

Primeter=180cm

=a+a+a=180

3a=180

a=180/3=60cm

s=180/2=90cm

Area of triangle=√s(s-a) (s-b) (s-c)

=√90(90-60) (90-60) (90-60)

=√90×30×30×30

=30√3×30×30

=30×30√3

=900√3sq.cm

2.here

a=120cm

b=22cm

c=122cm

s=a+b+c/2

s=120+22+122/2=264/2=132cm

Area of triangle=√132(132-120) (132-22) (132-122)

=√132×12×110×10

=√12×11×12×11×10×10

=12×11×10

=1320sq.cm

cost of advertisement for 1msq.&12m=Rs 5000

Cost of advertisement for 1320msq.&1m=5000×1320/12

Cost of advertisement for 1320sq.m&3m=5000×1320×3/12

=₹1650000