Answer:
Step-by-step explanation:
- 560 miles/h ⇒ 1680/3
- t = 7h ⇒378/54
- 4 ft/s⇒ 164/41
- t= 40 s ⇒ 1000/25
- P= 14*2+15*2 = 58 cm A= 14*15= 210 cm²
- P= 22*4 = 88 yd A= 22²= 484 yd²
- P= 2*61+2*54= 230 miles A= 61*54 = 3294 miles²
- P= 4*48= 192 mm A= 48²= 2304 mm²
