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3 years ago

Find the missing angle according to the Triangle Sum Theorem.

Mathematics

1 answer:

dangina [55]3 years ago

4 0

Answer:

k = 140 degrees.

The missing INTERIOR angle is 40 degrees.

Step-by-step explanation:

The missing interior angle would be 40.

Triangle angle sum theorem states the 3 interior angles of a triangle sum to 180.

64+76+40 = 180

The exterior angle theorem states the exterior angle of a triangle is equal to the sum of the two remote interior angles of the triangle.

Exterior angle k = 64+76

k= 140

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3 years ago

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scZoUnD [109]

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2 years ago

What is the value of x?

Molodets [167]

Answer:

x = 4√5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Trigonometry

Pythagorean Theorem: a² + b² = c²

Step-by-step explanation:

Step 1: Define

We are given a right triangle. We can use Pythagorean Theorem.

a = 19

b = x

c = 21

Step 2: Find x

Substitute: 19² + x² = 21²
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Evaluate: x² = 441 - 361
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And we have our final answer!

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3 years ago

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Step-by-step explanation:

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2 years ago

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Answer:

Step-by-step explanation:

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