Answer:
1)
2)
Step-by-step explanation:
1)
The two triangles are similar by AA similarity.
That means .
We can add to both sides to get .
We can then subtract from both sides to get .
We know that the because they both lie on a straight line.
We can plug in for to get .
We can divide both sides of the equation by to get .
We then add to both sides to get .
So, and we're done!
2)
Because the two bases of a trapezoid are parallel, meaning adjacent top and bottom angles sum to , we have that .
We can subtract a and an from both sides to get .
We then divide both sides of the equation by to get .
We do the same thing for . On the other side of the trapezoid, we have that .
We combine like terms on the left side to get .
We subtract a from both sides to get .
We divide both sides of the equation to get .
So, and we're done!
A work applied on the cart = 20.8x0.636
Itd Take Her 105 Minutes Start By Dividing 30 By 18 Then Multiplying That by 63
Answer:
c
Step-by-step explanation:
c=2*22/7r
440=44/7r
440*7/44=r
70=r
d=2r
d=2*70
d=140 cm