The correct answer is
1. 18yd 2ft 4inch
2. 23.5 cm
3.53.5 cm
Explain
1. Use the 1 yard =36 inch
1 foot = 12 inches
So divide 676/36 =18yrd
And divide 28/12= 2
And remaining is 4
2. the formula is
Sin= opposite side / hypotenuse
Cos 36 = pr / 11.8
11.8 cos 30 ^0 =pr
9.55cm = pr
And the rest step is in the picture
3. Cos 43 = ac/ab = 16.2/ab
Ab= 16.2/cos 43
Ta 43= bc/ac= bc/16.2
Perimeter = 16.2/cos43 +16.2 +16.2 tan 43
= 53.5 cm
Hopefully this help you :)
