Answer:
Not sure but giving it a try.
the perimeter of a circle is its circumference. C=2pir
2×3.142×6=38cm
the perimeter of one triangle is 13cm+5cm+12cm. how did i get 5?
22-12=10,
10÷2=5.
13cm+5cm+12cm= 30.
count that as two, 30+30=60.
perimeter of square= length × 4 = 12×4 = 48
Total : 38cm+60cm+48 = 146cm?