Multiple choice question II — task. Mathematics State Board, Class 9.

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1.

The correct statement out of the following is:

$\Delta ABC \cong \Delta DFE$
$\Delta ABC \cong \Delta DEF$
$\Delta ABC \cong \Delta FDE$
$\Delta ABC \cong \Delta FED$

2. The angles of the triangle are

$3x - 40$ ,

$x + 20$ and

$2x - 10$ , then the value of

$x$ is:

$35^\circ$
$40^\circ$
$45^\circ$
$50^\circ$

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