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Valentin [98]
3 years ago
7

Calculate the m angle CLA , given m arc AC = 160° and m arc AKC = 200°.

Mathematics
2 answers:
crimeas [40]3 years ago
7 0
<span>When two tangent lines intersect, they form an angle that equals
one half (larger intercepted arc minus the smaller </span><span>intercepted arc)

So, angle CLA = (1/2) (200 -160)
</span><span>Angle CLA = (1/2) (40)
</span><span>Angle CLA = 20 degrees

Source:
http://www.1728.org/circangl.htm

</span>
mezya [45]3 years ago
6 0

Answer:

The correct option is D.

Step-by-step explanation:

Given information: Measure of arc AC = 160° and arc AKC = 200°.

If two tangents intersecting outside the circle then their included angles is equal to half of difference of major and minor arc.

\text{Included angle}=\frac{1}{2}(\text{Major arc - Minor arc})

According to the given figure,

\angle CLA=\frac{1}{2}(Arc(AKC)-Arc(AC))

\angle CLA=\frac{1}{2}(200^{\circ}-160^{\circ})

\angle CLA=\frac{1}{2}(40^{\circ})

\angle CLA=20^{\circ}

The measure of angle CLA is 20°. Therefore the correct option is D.

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