Answer:
ratio of sides of trapezoid = 1:2:4:5
120cm perimeter of trapezoid
1 + 2 + 4 + 5 = 12
1/12 × 120
120/12 ÷ 12/12
2/12 × 120
240/12 ÷ 12/12
4/12 × 120
480/12 ÷ 12/12
5/12 × 120
600/12 ÷ 12/12
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Answer:
ratio of sides of trapezoid = 1:2:4:5
120cm perimeter of trapezoid
1 + 2 + 4 + 5 = 12
1/12 × 120
120/12 ÷ 12/12
= 10cm
2/12 × 120
240/12 ÷ 12/12
= 20cm
4/12 × 120
480/12 ÷ 12/12
= 40cm
5/12 × 120
600/12 ÷ 12/12
= 50cm