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spayn [35]
3 years ago
6

Find the measure of angle 1

Mathematics
1 answer:
WARRIOR [948]3 years ago
7 0

Answer:

m∠1 = 70°

Step-by-step explanation:

Since the triangle is isosceles, the two base angles are congruent

The sum of the measures of the angles = 180

So, 180 - 40 = 140 = 2m∠1

                        m∠1 = 140/2 = 70°

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weeeeeb [17]

<em>AC bisects ∠BAD, => ∠BAC=∠CAD ..... (1)</em>

<em>thus in ΔABC and ΔADC,    ∠ABC=∠ADC (given), </em>

<em>                                       ∠BAC=∠CAD      [from (1)],</em>

<em>AC (opposite side side of ∠ABC) = AC (opposite side side of ∠ADC), the common side between ΔABC and ΔADC</em>

<em>Hence,      by AAS axiom, ΔABC ≅ ΔADC,</em>

<em>Therefore,  BC (opposite side side of ∠BAC) = DC (opposite side side of ∠CAD),  since (1)</em>

<em />

Hence, BC=DC proved.

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aleksley [76]

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Pls solve it and show your work :((
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Answer:

See below

Step-by-step explanation:

To graph the line we need two points, one point is the y-intercept, the second point to be calculated.

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Natali [406]
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