Question

11. Solve the equation 3n +7=25 by trial and error method.
12. Find the value of x in the following diagram.​

Answer 1

upwards is the answer of Q.1

Q.2 the value of x is 18

4x + x + 90= 180°(angle sum property of ∆)

5x = 180 - 90

x = 90 / 5

x= 18°

the measurement of angles are 90° , 72° and 18° respectively..

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