3 years ago

Timeeeeeeeddddddddddd testttttttttt

Mathematics

1 answer:

Marizza181 [45]3 years ago

5 0

Answer:

X = 40°

Y = 78°

Step-by-step explanation:

Since the two angles at the bottom are parallel as it is shown that the triangle is an isosceles triangle (which means 2 angles in a triangle are the same while the one other is different)

51 - 11 = 40 (X)

Since we found out 2 angles in the triangle...

51 + 51 = 102

180 - 102 = 78 (Y)

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