Question

Given :- ∆ ABC is any triangle

To prove :- ∟ ABC + ∟ ACB + ∟ BAC = 180֯ ( Write proof).​

Answer 1

Step-by-step explanation:

Refer figure,

In △ABC

a=122m,b=22m,c=120m

s=2a+b+c=2122+22+120

=132m

ar△ABC=s(s−a)(s−b)(s−c)=132(132−122)(132−23)(132−120)

=132×10×110×12=132×10×11×10×12=(132)2×(10)2

=132×10=1320 m2

Rent of 1 m2 per year = Rs. 5000

Rent of 1 m2 per month = Rs.125000

Rent of 1 m2 for 3 months=Rs.123×5000

Rent of 1320 m2 for 3 months=Rs. (12

Answer 2

Answer:

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