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4 years ago

Triangle ABC is represented by the drawing below.

Mathematics

1 answer:

zhannawk [14.2K]4 years ago

3 0

Step-by-step explanation:

Therefore,

(x+20) + (x-10) + (2x-30) = 180° (Sum of interior angles of a triangle)

Or, x+x+2x+20-10-30 = 180°

Or, 4x-20 = 180°

Or, 4x= 180+20

Or, 4x= 200°

Or, x= 200°/4

Therefore, x= 50°

So,

(x+20)

= 50+20

=70°

(x-10)

= 50-10

40°

(2x-30)

= 2×50-30

=100-30

=70°

Hope it helped, If it did, please mark it as the brainliest answer :)

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Answer:

A Vertex

Step-by-step explanation:

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3 years ago

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Answer:

2nd choice B.

Step-by-step explanation:

You can use the options A-D to help you eliminate pretty quickly without actually graphing

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3 years ago

If you place a 39-foot ladder against the top of a 23-foot building, how many feet will

Alborosie

Answer:

31.5 ft

Step-by-step explanation:

Use the Pythagorean Theorem

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3 years ago

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anzhelika [568]

Answer:

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2 years ago

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