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What is the value of x and what is the measure of each angle?

What is the value of x and what is the measure of each angle?-example-1

2 Answers

3 votes

Answer:

m<A= 21°, m<B=80°, m<C=79°

Explanation:

,

What is the value of x and what is the measure of each angle?-example-1
User Ptomasroos
by
5.1k points
7 votes

Answer:angle A = 21 degrees

Angle B = 80 degrees

Angle C = 79 degrees

Explanation:

The sum of the angle in a triangle is 180 degrees. This means that in triangle ABC,

Angle A + angle B + angle C = 180 degrees. Therefore,

2x + 7 + 10x + 10 + 8x + 23 = 180

2x + 10x + 8x + 7 + 10 + 23 = 180

20x + 40 = 180

20x = 180 - 40 = 140

x = 140/20 = 7

Therefore,

Angle A = 2x + 7 = 2 × 7 + 7 = 14 + 7 = 21 degrees

Angle B = 10x + 10 = 10 × 7 + 10 = 70 + 10 = 80 degrees

Angle C = 8x + 23 = 8 × 7 + 23 = 56 + 23 = 79 degrees

User Manuel Glez
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4.9k points