Answer:
Perimeter = 46.6 m
Area = 78.36 m²
Step-by-step explanation:
Perimeter is just the outsides, so add 3.7 + 12.3 + 4.5 +11 AND the sides you aren't given. To find them, you do 11-3.7 = 7.3 and 12.3-4.5 = 7.8. So you add 3.7 + 12.3 + 4.5 + 11 + 7.3 + 7.8 = 46.6
Area is the inside, so you multiply length by width. You can split it different ways, but I multiplied by 3.7*12.3 first, giving 45.51. Now to find the area of the other box, you need to subtract 11 by 3.7, which we saw was 7.3. Now we can multiply 7.3 by 4.5, which is 32.85. Then you add 45.51 and 32.85 to get 78.36.
Answer is provided in the image attached.
Answer:
Your 1. does not show the triangle, so I may not help with it but know that sin = opposite over hypotenuse, cos = adjacent over hypotenuse, and tan = opposite over adjacent
2. 5/13, just do the adjacent over hypotenuse
Step-by-step explanation:
Pretty sure the answer would be 1/A^4