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Find the area of the trapezoid.

The perimeter of an isosceles triangle is 14 meters. The length of one side is 4 meters. The lengths of the other two sides are equal. Find the lengths of the other two sides.

Classify the quadrilateral.

Solve the equation.

$78=2p+12$

Find the value of y.

Find the unknown base or height of the parallelogram.

$A=40{\text{in.}}^2,b=25\text{in.,}h=\underset{¯}{?}$

The ratio of the angles of a triangle is$6:5:4$. Find the angle measures. Then classify the triangle by its angle measures.

Solve the proportion.

$\frac{a}{16}=\frac{5}{4}$

Describe and correct the error in finding the value of x for the triangle shown below.

Find the unknown base or height of the parallelogram.

$A=300{\text{m}}^2,b=\underset{¯}{?}\text{,}h=20\text{m}$