Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

9 Maths Ch 4


Arc is a part of the circumference of a circle
Area The number of square units needed to cover a given surface
Capacity the amount of space that can be filled
Circumference C=2πr or C=dπ for the measured distance around the edge of a circle.
Cross-section a surface or shape exposed by making a straight cut through a 3 dimensional object
Net Net is a two-dimensional pattern of a three-dimensional figure that can be folded to form the figure. In other words, net is a flattened three-dimensional figure which can be turned into the solid by folding it.
Perimeter the continuous line forming the boundary of a closed geometrical figure.
Polyhedron a solid figure with many plane faces, typically more than six.
Prism a solid geometric figure whose two ends are similar, equal, and parallel rectilinear figures, and whose sides are parallelograms.
Sector A region bordered by part of a circle and two radii.
Subtended angles are created by two lines joining. The 2 points where lines start are the points that subtend the angle.
Surface Area The sum of all the areas of all the faces or surfaces that enclose a solid.
Volume is the quantity of three-dimensional space enclosed by some closed boundary, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains.
Created by: camwust