Answer:
38 = D
Step-by-step explanation:
The 3 angles of a triangle equal 180 degrees
<B + <C + <D = 360
7x+ 12 + 2x+13 + 2x+ 12 =180
Combine terms
11x+37 = 180
Subtract 37 from each side
11x+37-37 = 180-37
11x =143
Divide by 11
11x/11 = 143/11
x =13
We want to find angle D
2x+12 = D
2(13) + 12 = D
26+12 = D
38 = D
Answer:
-2
76
14
36
12
-16
18
56
22
Step-by-step explanation:
skip count by 2 until the bar stops
Answer:
15
Step-by-step explanation:
A triangle's area is its base times height divided by 2.
