1.
d = rt
13 = r*3
r = 13/3
2.
v = r + at
a = (v-r)/t
Answer:
B
Step-by-step explanation:
90+45+45=180
All triangles equal 180.
Its B because if one angle is 90° then the other angles will equal each other. It cant be 60° and 30° because they dont equal, so your final answer is B.
Hope this Helps!!! :)
Answer:
Please help with these few questions
6. Use the picture to find the following angle measures.
9. Write a two -column proof for the following :
Given: angle1 and angle2 form a linear pair and m angle1= 2(m angle2)
Prove : m angle2 =60
10. Write a two-column proof for the following:
Given : AB = CD , AB = 4x + 1, and CD = 6x - 13
Prove: x = 7
Step-by-step explanation:
Please help with these few questions
6. Use the picture to find the following angle measures.
9. Write a two -column proof for the following :
Given: angle1 and angle2 form a linear pair and m angle1= 2(m angle2)
Prove : m angle2 =60
10. Write a two-column proof for the following:
Given : AB = CD , AB = 4x + 1, and CD = 6x - 13
Prove: x = 7
Answer:
Transitive property of equality is not a justification for the proof.
Step-by-step explanation:
We draw a right angle ΔACB. CD is perpendicular to AB.
Let AC = a , BC = b , AB = c and CD = h
Now in ΔABC and ΔACD
∠C = ∠D and ∠A = ∠A
from AA similarity postulate
ΔABC similar to ΔACD.
Hence,
= 
= c × x ·····················(1)
Now in ΔABC and ΔCBD
∠C = ∠D and ∠B = ∠B
from AA similarity postulates
ΔABC similar to ΔCBD
Hence,
= c × y······················(2)
Add equation (1) and (2)
+ = cx + cy
+ = c(x+y)
+ = 
[because x+y=c]
Transitive property is not useful for this proof.
