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Mathematics 19 Online
m3isha:

Could someone help me with this

m3isha:

BADKARMA88:

So you have to find the value of X.

Vocaloid:

On my phone, apologies if anything is unclear When you have an inner angle made by two intersecting lines, that angle is half the sum of the inner and outer arcs made by those lines In your example, look at the left angle that intersects arc x. It’s on a straight line with an angle measuring 101. So the left angle is 180 - 101 = 79 degrees. Now, the lines intersect arcs x and the outer 80 degree arc. So this angle is one half the sum of those two arcs. So 79 = (1/2)(x+ 80) Solve for x

Vocaloid:

Here’s an image that better illustrates what I’m trying to get across (bottom left)

1 attachment
m3isha:

@vocaloid wrote:
On my phone, apologies if anything is unclear When you have an inner angle made by two intersecting lines, that angle is half the sum of the inner and outer arcs made by those lines In your example, look at the left angle that intersects arc x. It’s on a straight line with an angle measuring 101. So the left angle is 180 - 101 = 79 degrees. Now, the lines intersect arcs x and the outer 80 degree arc. So this angle is one half the sum of those two arcs. So 79 = (1/2)(x+ 80) Solve for x
tysm

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