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UNO [17]
3 years ago
9

Can someone help me understand and solve this? Plz...

Mathematics
2 answers:
valentinak56 [21]3 years ago
3 0
320-70= 250
250X1/2=125
X=125
Licemer1 [7]3 years ago
3 0

The angle just above 40 degrees angle = 1/2 * 70 = 35  making the 'double' angle at top = 35 + 40 = 75.  The 'double' angle opposite = 180 - 75 = 105 ( because  opposite angles of a cyclic quadrilateral add up to 180 degrees). Also the top angle of this one = 40 degrees ( because  2 equal sides  both subtend same angle).

So the bottom angle = 105-40 = 65 degrees.

Now x = this angle ( alternate segment theorem )

Therefore x = 65 degrees.

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