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andrew-mc [135]
2 years ago
15

1. PART A: Determine the missing lengths:

Mathematics
2 answers:
Otrada [13]2 years ago
3 0

#1

Divide into two rectangles

\\ \tt\hookrightarrow "1"=14-12=2

\\ \tt\hookrightarrow "2"=3+1=4

#2

\\ \tt\hookrightarrow P=14+1+12+3+2+4=36

#3

\\ \tt\hookrightarrow A=14(1)+3(2)=14+6=20units^2

lozanna [386]2 years ago
3 0

Answer:

1 = 2 units

2 = 4 units

P = 36 units

A = 20 units²

Step-by-step explanation:

1. PART A:

Missing length 1 = 14 - 12 = 2 units

Missing length 2 = 1 + 3 = 4 units

<u>PART B</u>

The perimeter is the distance all the way around the outside of a 2D shape. To work out the perimeter, add up the lengths of all the sides

Perimeter = 1 + 12 + 3 + 2 + 4 + 14 = 36 units

<u>PART C</u>

Area of a rectangle = width x height

Separate the shape into 2 rectangles (so draw a line down from the internal corner of the L shape).

Total area = 1 x 14 + 2 x 3 = 14 + 6 = 20 units²

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