4th Math Challenge 1

What does the drawing show?

• Two line segments that appear to be parallel

• Two line segments that appear to be perpendicular

• Two lines that appear to be parallel

• Two lines that appear to intersect

Angle SRT has a measure of 35°. Angle TRV has a measure of 65°.

What is the measure in degrees of angle SRV?

• 30°

• 110°

• 90°

• 100°

Deon sorted figures into groups. The figures shown were sorted into the same group.

Which statement best describes the figures in this group?

• Each figure has only one obtuse angle.

• Each figure has at least one acute angle.

• Each figure has only one pair of parallel sides.

• Each figure has at least one pair of perpendicular sides.

Angle TUV is shown on the protractor.

What is the measure of angle TUV to the nearest degree?

• 170°

• 60°

• 110°

• 10°

A set of figures is shown.

Which figure has at least one acute angle, right angle, and obtuse angle?

• Figure T

• Figure W

• Figure X

• Figure Y

Lori started to draw an array to help her solve a math problem. She drew one full row and one full column of the array, as shown.

She finished drawing the array correctly. Which equation represents a problem Lori could solve using this array?

• 12 × 13 = 156

• 13 × 13 = 169

• 14 × 12 = 168

• 13 × 14 = 182

The fourth-grade classes at a school made flowers to decorate the cafeteria. There are 5 fourth-grade classes at this school.

• To make each flower, 4 sheets of paper were used.

• The classes used a total of 300 sheets of paper.

• Each class made the same number of flowers.

How many flowers did each fourth-grade class make?

• 75

• 15

• 240

• 17

The drawing shows four lines through a figure. Three of the lines are lines of symmetry.Which line does NOT appear to be a line of symmetry for this figure?

• Line w

• Line x

• Line y

• Line z

To construct an angle that has a measure of 70°, another ray can be drawn that starts at point G and passes through —

• point J

• point K

• point M

• point N

Which type of triangle has perpendicular sides?

• An obtuse triangle

• An acute triangle

• A right triangle

• None of these