Question

The Angles of triangle are (x-40)*(x-20)and (1/2×10)* find the value of x .

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Answer 1

Answer:

Step-by-step explanation:

we know ,

sum of all angles of any triangle is equal to 180° .

Here given,

first angle = ( x -40)°

second angle = (x -20)°

third angle = (x/2 - 10)°

first angle + second angle + third angle = 180°

( x -40)° + (x -20°) + (x/2 - 10)° = 180°

(x + x + x/2) -(40 + 20 + 10) = 180°

5x/2 = 250°

x = 100° .

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