This is a review test that is timed.
This exercise explores the effect of slides, flips, and turns on simple shapes. Grids will be used to show the effects of movement.
This exercise explores the effect of slides, flips, and turns on simple shapes.
Volume = Area x length
The net of a 3 dimensional shape composed of all the flat faces of a 3D shape. The solid shape is represented as a 2 dimensional shape, and once folded back will form the solid shape.
This can be used to find the surface area of a 3D shape.
The following activity will make it easy for you to calculate the area of parallelograms.
Consider the following parallelogram. It can be transformed into a rectangle with the same base, the same height, and the same area.
Thus, this shows that the formula for the area of a parallelogram is exactly the same as for a rectangle: L x B
Try it out. Download the worksheet below.
Review and consolidate
Review and consolidate.
Do you recall the area of a rectangle is L x B? A diagonal line that is drawn in a rectangle divides into two equal parts, triangles. So, the area of a triangle is half the area of the rectangle.
Triangles are related to parallelograms.
The two copies produces a parallelogram. Therefore the triangle has an area that is half the area of a parallelogram.
The distance around a circle is called its circumference.
To find the circumference of a circle, multiply π to the diameter.
Compound shapes are shapes that are irregular. You can divide them into smaller shapes. The area is thus calculated easier when you split them apart.
Read each question carefully.
Read the following questions carefully. Exercise focuses on the area of squares and rectangles. Review perimeter.
The circle is a simple closed shape. A circle has parts. a chord, diameter, center, radius and a circumference (the distance around the circle).
Problem solving exercises.
Practice finding the perimeter of a number of polygons.
Here are some 3 dimensional shapes you should know.
Below is a video with these shape and some more.
Triangles have special features. They can be classified by sides and angles.
Classification according to length of sides.
Classification according to internal angles.
The right angle is 90 degrees. The longest side of the right angle triangle is called the hypotenuse.
An obtuse angle is more than 90 degrees (but less than 180 degrees) and an acute angle is less than 90 degrees.
Copy a shape on a card. Name it. Cut it into smaller shapes and specify the number of smaller shapes. Determine if the the lines are congruent.
We can describe 3-D shapes in many ways. Simply, there are some that roll and some with points. There are some with a side that looks like a triangle, a rectangle, square or circle. You will also be expected to describe 3-d shapes as have faces, corners, edges, and points or vertices. Describing a 3-d shape makes it possible for us to identify the shapes of objects in our environment.
Some example of shapes in our environment can be seen below.
Build shapes using tightly rolled newspaper. Roll very tightly. Create skeletal structures and special shapes by tightly taping the corners.
Objects have shape and form. Simple shapes are classified according to their number of edges and points.