Geometry

Geometry terms

100

What is a plane figure (shape) with 3 sides?

triangle

200

a rule or fact written with mathematical symbols

equation

300

 The surface a solid shape stands of rests on is called 

base

400

The distance from top to bottom of a shape is called 

height

500

the amount of shape covering the outside of a three-dimensional shape 

surface area 

Geometry terms

100

What is the total space taken up by a flat shape?

area

200

a mathematical statement that shows that two mathematical expressions are equal 

equation

300

what a 3D shape would look like if it was unfolded

net

400

a solid figure that has three dimensions (Length, Width, and Height)

Three-Dimensional

500

made up of basic shapes put together 

compound shapes 

Solve it

100

If a rectangle has a length of 30 inches and a width of 15 inches, what is the area?

30 inches · 15 inches = 450 inches²

200

For a parallelogram, if the base = 7 cm and the height = 4 cm, what is the area?

28 cm ²

300

For a compound shape, if area of a square is 16cm and the area of a rectangle is 90cm, what is the total area?

106 cm²

400

Find the area of a compound shape if the square has an area of 64 cm and the rectangle has a length of 11 cm and a width of 10 cm.

64 + 110 = 174 cm²

500

For a compound shape, if a square is 20 yards · 20 yards and the rectangle has a length of 40 yards and a width of 10 yards, what is the area?

400 yards + 400 yards = 800 yards²

Formulas

100

Formula for finding the area of a rectangle

A= L · W

200

Formula for finding the area of a parallelogram

Area = b · h

300

Formula for finding the area of a triangle

Area = 1/2 · b · h 

400

What is the formula for finding the area of a trapezoid?

A = 1/2 · h (b₁ + b₂)

500

For a trapezoid, if the the height is 3m, b₁ is 4m and b₂ is 7m.  What is the area?

16.5 m³

Formulas & Problems

100

For a rectangle, if the length is 20 inches and the width is 10 inches, What is the area?

200 inches²

200

For a parallelogram, if the base is 8 cm and the height is 5 cm, what is the area?

40 cm²

300

For a triangle, if the base is 16 cm and the height is 8 cm, what is the area?

64 cm²

400

What is the first step to finding the area of a compound shape?

Identify the shape

500

After you identify the shapes, what are steps  2 and 3 in finding the area of compound shapes?

2.  Solve the area for those shapes

3.  Add those areas together