Answer:
21%
Step-by-step explanation:
15/70=21.14 round to 21
Answer:
20°
Step-by-step explanation:
ΔCAD
BD=CD
∠BCD=50°, ∠BAD= 30°, x= ?
------------
BD=CD ⇒ ∠CBD= ∠BCD= 50° ⇒ ∠BDC= 180°- 50°×2= 80°
∠ADC= 180° - (50°+30°)= 100°
x= ∠ADC - ∠BDC= 100° - 80°= 20°
x= 20°
Answer: DA:FA=KE:EF, DF:DA=KF:KE and FA:DA=EF:KE are correct.
Explanation: Since, 
and 
are similar triangles.
Because, 
and 
(because EA and KD are parallels. And, 
is common angle for these triangles.
Therefore, according to the property of similar triangles.
FE:EK= FA:AD, FE:FK=FA:FD and DF:DA=KF:KE .
Thus, first, second and third options are correct.
<u><em>Answer: x=4 *The answer should be the positive sign.*</em></u>
Step-by-step explanation:
cancel by the common factor of 6.
x/16=1/4
multiply by 16 both sides of an equation.
16x/16=1*16/4
multiply the numbers.
1*16=16
=16/4
16/4=4
x=4
Hope this helps!
Thanks!
Have a great day!
