Answer: 148
A triangle = 180
So all three sides have to add up to 180.
If one side is 12 And the other is 20 you add that makes 32.
12 + 20 = 32
Now we need to find the length of the other side. 32 is two of the sides and 180 is the whole. So something + 32 = 180
32 + x = 180
To find x you subtract 32 from 180
180 - 32 = 148
Hope this helps
Answer is 184.8
I would explain but i’m too lazy to type it all but basically i found the area of each of the triangles and the square added it up to get 184.8
66. 10a-4
67. 7x+y
68. -4k-9
69. -21x-15
70. 100y+6
71. -88r-9s
72. 24x-25t
73. 20a-10b-6c
Answer:
I THINK IT IS C
Step-by-step explanation:
I REMEMBER DOING THIS, SORRY IF IM WRONG HAVE A NICE DAY!