In parallelogram efgh , ej=x2−4 and jg=3x . what is eg ? 4 6 12 24 what is the measure of ∠dab? enter your answer in the box.

The required length of is units.

Step-by-step explanation:

Given: In parallelogram  and .

we know that

In a parallelogram; opposite sides are equal, opposite angles are equal and diagonals bisect each other.

From the figure,

And              ( diagonals of parallelogram bisect each other )

Neglecting the value of as length cant be negative.

Therefore,

Hence, the length of is units.

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we know that

In a parallelogram; opposite sides are equal, opposite angles are equal and diagonals bisect each other.

so

Part 1)

In this problem

-----> remember diagonals bisect each other

substitute the values

Using a graphing tool-------> solve the quadratic equation

see the attached figure

The solution is

Find the value of EG

therefore

the answer Part 1) is

Part 2) What is the measure of ∠DAB?

we know that

∠DAB+∠ADC= ------> by consecutive interior angles

in this problem we have

∠ADC=

substitute

∠DAB=

∠DAB=

therefore

the answer Part 2) is

∠DAB=