Answer:
< B = 180-30-65=85°
< E = 85°
< D = 30°
< C = 65°
BC = 20/35 × 28 = 16
<D = 30
< C = 65
<B = <E = 85
16 = BC
Step-by-step explanation:
ABC ~ Triangle DEF
<A = <D = 30
< C = <F = 65
Since they are similar triangles
A+ C + B = 180 since the angles of a triangle = 180
30+65+B =180
95+ B = 180
<B = 180 -95 = 85
The triangles are similar so the sides are proportional
AB BC
---- = ---------
DE EF
20 BC
35 28
Using cross products
20*28 = 35 BC
Divide each side by 35
20*28/35 = 35/35 BC
2(y−4)=4
(2)(y)+(2)(−4)=4
2y+−8=4
2y−8=4
2y−8+8=4+8
2y=12
y=6 is correct answer.
Hope this helps!
Thanks!
-8.2,-2 1/2, 0.4,2.4
hope that helps
9(5 + 2)
the answer is D