Formulas
Parallelograms
Regular Polygons
Circles
Rhombus/Trapezoids/Trianlges
100

What is the formula for the area of a triangle?

A=1/2bh

100

What is the area of this figure?


49mm2

100

What is the area of the pentagon below?


34.875ft2

100

What is the area of a circle with a circumference of 56.55in? Round to the nearest hundredth.

254.47in2

100

What is the area of the triangle?


21in2

200

What shape(s) use the following formula to find the area?

A = bh

Parallelograms

200

What is the area of this figure?


72cm2

200

Find the area of the octagon below.


484m2

200

What is the circumference of a circle with an area of 201.06mm?

50.27mm or 16pi mm

200

What is the area of the rhombus?


40

300

What shape uses the following formula to find the area?

A= (b1+b2)/2*h

Trapezoid

300

What is the height of a parallelogram with a base of 6cm and an area of 24cm2?

4cm

300

What is the area of the hexagon below? Round to the nearest hundredth.


374.04in2

300

What is the area of the sector? Round to the nearest hundreth.


11.17ft2

300

What is the area of the trapezoid?


109.18m2

400

What is the formula for a regular polygon?

A = 1/2aP

400

What is the height of the parallelogram, round to the nearest tenth?


20.1

400

What is the area of a pentagon with side lengths of 12in? Round to the nearest tenth.

247.7in2

400

What is the radius of a sector with a central angle of 80 degrees and an area of 50pi? Round to the nearest tenth.

12.8

400

What is the area of an equilateral triangle with side lengths of 9cm? Round to the nearest hundredth.

35.06cm2

500

What is the formula for a sector of a circle?

A = (n/360)pi*r^2

500

What is the area, to the nearest tenth, if AB is 12?


360.2

500

What is the area of the dodecagon below? Round to the nearest tenth.


1354.7in2

500

What is the measure of the central angle of a sector with a radius of 9 yds and an area of 95.38yd2? Round to the nearest degree.

135 degrees

500

What is the area of the trapezoid?


108

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