Step-by-step explanation:
58 +38 = 96 degree
so we do 180 - 96 = 84 degree valur of x for one triangle
so opposite side angke x will be 96
so again we do 96 +15 = 111 degree
180 - 111 = 69 degree
The answer is the last one
Answer:
Multiply the numbers in parentheses by 3.
Which gives you 12 + 6b - b =27
Combine like terms
12 + 5b = 27
Then subtract 12 from both sides
Which leaves you with
5b = 15
Divide both side by 5
which gives you
answer C
<h3>Angles sum up to:</h3><h3>( n - 2 ) × 180 = ( 5 - 2 ) × 180 = 3 × 180 = 540</h3>