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Activity
Maths Challenge

Maths challenge.net: Perpendicular Construction

For Students 9th - 10th Standards
This is a "three star" geometry problem where prior math problem skills and proof experience is recommended to solve this "Perpendicular Construction" problem.
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Activity
Maths Challenge

Maths challenge.net: Glass in the Door

For Students 9th - 10th
Use your knowledge of volume and weight to solve this posed problem of finding the weight of a glass in a door.
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Activity
Maths Challenge

Maths challenge.net: Circular Pipes

For Students 9th - 10th Standards
A realistic world problem using the knowledge of chords and the parts of a circle to solve. Test your knowledge on this brain teaser!
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Activity
Maths Challenge

Maths challenge.net: Spider Fly Distance

For Students 9th - 10th Standards
A "three star geometry problem" requiring knowledge of how to complete geometric proofs and some prior math skills to figure the shortest distance between the opposite corners of a cuboid.
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Activity
Maths Challenge

Maths challenge.net: Tick Tock Triangle

For Students 9th - 10th Standards
This is a "three star" geometry problem where prior knowledge of probability is required to solve this "Tick Tock Triangle" problem, have fun!
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Activity
Maths Challenge

Maths challenge.net: Leaning Ladders

For Students 9th - 10th Standards
Use your right triangle solving skills to solve this ladders in a hole problem.
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Activity
Maths Challenge

Maths challenge.net: Tri Angles

For Students 9th - 10th Standards
A geometry proof involving exterior angles of a triangle.
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Activity
Maths Challenge

Maths challenge.net: Right Triangle Equal Parts

For Students 9th - 10th Standards
A geometry proof problem involving a right triangle and finding angles of equal measure.
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Activity
Maths Challenge

Maths challenge.net: Bag of Balls

For Students 9th - 10th Standards
A "three star" geometry problem which requires prior math problem solving skills and proof writing skills to solve this "Bag of Balls" radius of balls problem.
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Activity
Maths Challenge

Maths challenge.net: Shaded Triangle

For Students 9th - 10th Standards
A great geometry problem of area, encorperating many learned skills.
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Activity
Maths Challenge

Maths challenge.net: Sloping Square

For Students 9th - 10th Standards
A geometry problem of finding the area of a sloped square within a square.
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Activity
Maths Challenge

Maths challenge.net: Ice Cream Cone

For Students 9th - 10th
Is summer close yet? Think about this yummy ice cream treat in a mathematical way! A problem of volume is posed for an ice cream cone.
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Unknown Type
Maths Challenge

Maths challenge.net: Chequered Floor

For Students 9th - 10th Standards
A problem involving patterns to find the solution to this sequence problem.
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Activity
Maths Challenge

Maths challenge.net: Triangle Area

For Students 9th - 10th Standards
Find the area of this triangle in a coordinate plane.
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Activity
Maths Challenge

Maths challenge.net: Pentagon Star

For Students 9th - 10th
An area problem using your knowledge about pentagons.
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Activity
Maths Challenge

Maths challenge.net: Circumscribed Triangle

For Students 9th - 10th Standards
Find the area of this circumscribed triangle with your geometry skills.
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Activity
Maths Challenge

Maths challenge.net: Alley Ladders

For Students 9th - 10th Standards
This is a "three star" geometry problem where prior math problem skills and proof experience is recommended to solve this relationship between the inverses of heights.
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Activity
Maths Challenge

Maths challenge.net: Equal Angles

For Students 9th - 10th Standards
A geometric proof. Prove two angles in this model are equal in measure.
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Activity
Maths Challenge

Maths challenge.net: Blonde Hair Brown Eyes

For Students 9th - 10th
A problem involving fractions to determine the fraction of people in a class that have brown eyes.
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Activity
Maths Challenge

Maths challenge.net: Triangle in a Square

For Students 9th - 10th Standards
A "three star" geometry problem requiring some prior knowledge in math and proofs to maximize the area of an inscribed triangle in terms of the hypotenuse.
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Activity
Maths Challenge

Maths challenge.net: Inscribed Rectangle

For Students 9th - 10th Standards
This is a proof problem, considered a "three star" geometry problem requiring knowledge of proofs and properties of circles to solve this equal area of inscribed polygons problem.
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Handout
Maths Challenge

Maths challenge.net: Three Circles

For Students 9th - 10th Standards
This is a proof problem, considered a "three star" geometry problem requiring knowledge of proofs and properties of circles.
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Activity
Maths Challenge

Maths challenge.net: Measuring Mountains

For Students 9th - 10th Standards
Use your triangle solving skills to solve this triangle problem and then apply it to the real world.
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Activity
Maths Challenge

Maths challenge.net: Annulus

For Students 9th - 10th Standards
An annulus of a circle is defined and then a proof like problem is posed involving area and radius of circles.