Areas Flashcards

1
Q

What is the formula for the area of a rectangle?

A

L x W

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2
Q

What is the formula for the area of a square?

A

L squared

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3
Q

What is the formula for the area of a triangle?

A

B x H divide by 2

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4
Q

What is the formula for the area of a parallelogram?

A

B x H

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5
Q

What is the formula for the area of a trapezium?

A

Average of parallel sides x H
A
(A+b) x h

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6
Q

What are composite shapes?

A

Composite shapes are made up of different shapes stuck together.

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7
Q

How do you find the area of a composite shape?

A

Split the shape into seaport shape, find the area of each shape and add them together.

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8
Q

What is the formula for the area of a circle?

A

TTxr2

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9
Q

How do you find the circumference of a circle?

A

TTxdiameter

2xTTx R

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10
Q

How do you find the area of a sector

A

X ÷ 360 x area of full circle

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11
Q

How to find the length of an arc

A

X ÷ 360 x circumference of circle.

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12
Q

How to find the area of segment

A
  1. Find the area of the sector
  2. Find the area of the triangle
  3. Subtract triangle area from sector area.
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