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3 years ago

15

John’s mathematics teacher drew a triangle that had a 70° angle and a 20° angle. What is the measure of the third angle in the t

riangle?
90°

180°

70°

10°

1 answer:

kari74 [83]3 years ago

7 0

All triangles interior angles equal 180
So these 3 angles = 180

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Answer:

Step-by-step explanation:

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2 years ago

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Deffense [45]

Answer:

Part 1) $MD=9\ units$

Part 2) $DC=12\ units$

Step-by-step explanation:

Step 1

Find the length of MD

we know that

The incenter is the intersection of the angle bisectors of the three vertices of the triangle. Is the point forming the origin of a circle inscribed inside the triangle

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we have that

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therefore

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Step 2

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we know that

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we have

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substitute

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Answer:

$=1.17-3.99a$

Step-by-step explanation:

$1.17-0.07a+\left(-3.92a\right)$

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3 years ago