Mathematics: Please help me with this question!! Find angle x and y.

Please help me with this question!! Find angle

neariah24

28.01.2022

x =80°

y = 280°

Step-by-step explanation:

Given: $AB \parallel CD$

Extend segment CE in the direction of E in such a way that it intersects ray AB at point say P.

$\therefore m\angle APE = m\angle ECD..(Alternate\: \angle s)\\\because m\angle ECD = 42°\\\therefore m\angle APE = 42°\\$

So, x° would be the exterior angle of $\triangle AEP.$

Hence, by remote interior angle theorem of a triangle, we have:

$x = 38° + 42°\\\huge\purple{\boxed{x = 80° }}\\\\y = 360\degree - 80\degree\\\huge\red{\boxed{y= 280\degree}}$

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erinwebsterrr

02.05.2022

C. 128 cm³

Step-by-step explanation:

16(20) = 320

320/2.5 = 128 cm³

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