4 years ago

Find x for both compound shapes. Please show your working out.

Mathematics

1 answer:

Soloha48 [4]4 years ago

6 0

Q1 Perimeter = sum of all the sides

The length of the unmarked sides are 9 -8 = 1 cm and x - 3 cm

So x + x - 3 + 3 + 1 + 8 + 9 = 28

2x = 28 - 18

2x = 10

x = 5 answer

unmarked sides = x - 8 and and 5 - 2 = 3

x + x - 8 + 3 + 2 + 5 + 8 = 30

2x = 30 - 10 = 20

x = 10 answer

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