Area Formulas
Regular Polygons
Find the Area
Similarity Stuff
Area 2
100
The formula for area of a parallelogram.
What is base x height (or A = bh)
100
Define apothem.
What is the perpendicular length from the center of a regular polygon to the side length.
100
Find the area of a triangle with a base of 10cm and a height of 4cm.
What is 20cm squared
100
If two figures have a scale factor of 3:4, what is the ratio of their perimeter?
What is 3:4 or 3/4
100
Find area of the triangle. Round to the tenth.
11.0in squared
200
The formula for area of a triangle.
What is 1/2 base x height (A = 1/2bh) or base x height divided by 2 ( A=(bh)/2 )
200
find the missing angle in the following regular polygon.
1= 30 degrees 2= 15 degrees 3= 75 degrees
200
Find the area of the kite(on the board)
What is 34 ft squared
200
If two figures have a scale factor of 5:8, what is the ratio of their areas?
What is 25:64 or 25/64
200
Find h in the following parallelogram.
What is 8units
300
The formula for area of a kite.
What is 1/2 diagonal1 x diagonal2 (or A=1/2(d1)(d2) )
300
Name the polygons in order, from 3-sided to 10-sided.
What is Triangle, Quadrilateral, Pentagon, Hexagon, Heptagon, Octagon, Nonagon, Decagon.
300
Find the area of the trapezoid(on the board)
What is 27.5meters squared
300
There are two similar figures with a scale factor of 2:3, if the smaller figure has a perimeter of 12m, what is the perimeter of the larger figure?
What is 18m
300
Find the area of the following shape.
What is 285 cm squared
400
The formula for area of a trapezoid
What is 1/2 height x (base1 + base2) (or A= 1/2h(b1 + b2) or (h(b1 + b2))/2
400
Find the area of a regular hexagon with side length 8cm. You may round to the tenth or keep in simplest radical form.
What is 166.3 cm squared or 96squareroot3 cm squared.
400
Find the area of the rhombus(on the board)
What is 1100 ft squared
400
There are two similar figures with a scale factor of 4:5, if the larger figure has an area of 32in squared, what is the area of the smaller figure?
What is 20.48 inches squared
400
Find the area of the following shape. You may round to the tenth or use simplest radical form.
60meters squared
500
The formula for area of a regular polygon.
What is 1/2 apothem x perimeter (A = 1/2ap), or 1/2 apothem x side length x number of sides (A=1/2asn)
500
The area of a regular octagon with apothem of 10m, you may round to the nearest tenth.
331.4m squared
500
Find the area of a regular decagon with an apothem of 12mm, and side length of 3mm.
What is 180 mm squared
500
There are two similar triangles on the board, what is the area of the larger?
What is 39.2 ft squared
500
Find the area of the following shape.
What is 67.9 ft squared or 48 sqrt 2 ft squared.
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