Math, asked by apurba5898, 2 months ago

In A ABC if AB = (2a-1)cm, AC= (2√2a) cm
BC= (2a+1)cm then what will be the value of √BAC​

Answers

Answered by gyaneshwarsingh882
0

Answer:

Step-by-step explanation:

here we see that

AB^2=4a^2-4a+1

BC^2=4a^2+4a+1

AC^2=8a^2

hence,

BC^2-AB^2=AC^2

so, BC^2=AB^2+AC^2

according to Pythagoras theorem

angles BAC is right angle , because their sides show Pythagoras theorem .

hence angle BAC=90 degree

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