Math: 4.6C Identifying Triangles

Which triangle appears to be an acute triangle?

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• Acute triangle, because there are two acute angles

• Obtuse triangle, because the largest angle is obtuse

Which type of triangle has perpendicular sides?

• An obtuse triangle

• An acute triangle

• A right triangle

• None of these

Christopher drew a polygon that has exactly two right angles. Which of these could be the polygon Christopher drew?

• Right triangle

• Right trapezoid

• Rectangle

• Rhombus

Michelle drew a flag with exactly one pair of perpendicular sides. Which of these could be the shape of the flag?

• Right triangle

• Acute triangle

• Rectangle

• Square

Several two-dimensional figures are shown here. Based on the figures shown and what you know about two-dimensional figures, which statement is true?

• Every rhombus is a square, but a square is never a rhombus.

• Every trapezoid is a parallelogram, but it is never a quadrilateral.

• Every square is a rectangle, but a rectangle is not always a square.

• Every quadrilateral is a parallelogram, but parallelograms are never quadrilaterals.