Question

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Answer 1

Answer:

perimeter of rectange=2(l+b)

=2×15

=30cm

perimeter of triangle= 3×a

=3×5

= 15cm

Answer 2

Step-by-step explanation:

Perimeter=2(l+b)

2(10+5)

2(50)

100 cm

Perimeter=3xa

3x5

15 cm