91Ó°ÊÓ

REMODELING The Steiner family is remodeling their kitchen. Each side of the floor measures 10 feet. What other measurements should be made to determine whether the floor is a square?

Find the sum of the measures of the interior angles of each convex polygon. $$18 -gon$$

Find the sum of the measures of the interior angles of each convex polygon. $$19 -gon$$

Write a flow proof. Given: \(E\) and \(C\) are midpoints of $$\begin{array}{l}\overline{A D} \text { and } \overline{D B} ; \overline{A D} \cong \overline{D B} \text { and } \\ \angle A \cong \angle 1\end{array}$$ Prove: \(A B C E\) is an isosceles trapezoid. CAN'T COPY THE GRAPH

Find the sum of the measures of the interior angles of each convex polygon. $$ 27 -gon$$

Find the sum of the measures of the interior angles of each convex polygon. $$ 4y-gon$$

PROOF Write a two-column proof. Given: \(\Delta W Z Y \cong \triangle W X Y\) \(\triangle W Z Y\) and \(\triangle X Y Z\) are isosceles. Prove: \(W X Y Z\) is a rhombus. (IMAGE CAN'T COPY)

Find the sum of the measures of the interior angles of each convex polygon. $$2 x-$ gon$$

PROOF Write a two-column proof. Given: \(\quad \triangle T P X \cong \triangle Q P X \cong\) $$ \triangle Q R X \cong \triangle T R X $$ Prove: \(T P Q R\) is a rhombus. (IMAGE CAN'T COPY)

For each quadrilateral with the vertices given, a. verify that the quadrilateral is a trapezoid, and b. determine whether the figure is an isosceles trapezoid. $$A(-3,3), B(-4,-1), C(5,-1), D(2,3)$$