110/55 is what u get if u add them all up
Answer:
B
Step-by-step explanation:
<STR = <SRT Given the markings of the triangle
<STR + <STU = 180 Supplementary angles
(2x - 9) + 7x = 180 Remove the brackets
2x - 9 + 7x = 180 Combine
9x - 9 = 180 Add 9 to both sides
9x = 180 + 9 Combine
9x = 189 Divide by 9
9x/9 = 189/9
x = 21
Answer:
1st one
Step-by-step explanation:
Thank you for posting your question here at brainly. Below is the solution. I hope the answer will help.
Solution:
<span>divide A by h
</span><span>A/h=1/2(B+b)
</span><span>multiply A/h by 2
</span><span>2A/h=B+b
</span><span>minus b from A/2b
</span><span>(2A/h) - b= B</span>
