How to find an angle in a quadrilateral

Practice Questions

ACT Math › How to find an angle in a quadrilateral

Questions

4

1

The rhombus above is bisected by two diagonals.

If $\angle ADE = x+35$ and $\angle EAB = 2x+10$ then, in degrees, what is the value of the $\angle BCD$ ?

Note: The shape above may not be drawn to scale.

2

Q10

If $\angle A = 15+2y$ and $\angle C=\frac{y+96}{2}$ , then, in degrees, what is the value of $\angle B$ ?

Note: The figure may not be drawn to scale.

3

The interior angles of a quadrilateral are $71^{\circ}$ , $9x^{\circ}$ , $5x^{\circ}$ , and $3x^{\circ}$ . What is the measure of the smallest angle of the quadrilateral?

4

$\angle ADB$ bisects $\overline{EC}$ . If $\angle DAB=35$ then, in degrees, what is the value of $\angle ADB$ ?

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