4th Grad Math STAAR Category 3

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Sebastian had a rectangular piece of paper that was 90 mm long and 50 mm wide. He cut the paper in half. What is the area of each half of the paper in square millimeters.

• 4,500 square millimeters

• 9,000 square millimeters

• 2,250 square millimeters

• 1,125 square millimeters

Ruth sorted polygons into groups. The polygons shown belong are in the same group. Which description best represents this group?

• polygons with perpendicular and parallel lines

• polygons with perpendicular lines only

• polygons with acute and obtuse angles

• polygons with obtuse angles only

Which of the following statements is true of the triangle?
1. It has no right angles.
2. It has 2 acute angles.
3. It has 1 pair of perpendicular sides.

• Statement 1 only
• Statement 3 only
• Statements 1 and 2 only
• Statements 1, 2, and 3