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3 years ago

Please help:

Mathematics

1 answer:

Fudgin [204]3 years ago

5 0

Answer:

$\angle 1 =47^o\\\angle 2 = 133^o\\\angle 4 = 133^o$

Step-by-step explanation:

Notice that angles <1 and <3 are opposed by the vertex, which makes them of equal measure, therefore, <1 = 47 degrees.

Notice as well that angles <1 and <2 combine into a straight line, therefore, they are supplementary angles whose addition gives 180 degrees then we can find the value of angle <2 via:

$\angle 1 + \angle 2 = 180^o\\47^o + \angle 2=180^o\\\angle 2 = 180^o-47^o\\\angle 2 =133^o$

And finally, angle <4 is opposite through the vertex to angle <2, and therefore they must have the same measure. So, <4 = 133 degrees.

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