3 years ago

If the area of the triangle (the shaded portion below) within the pentadecagon is 10 units, what is the area

Mathematics

1 answer:

GaryK [48]3 years ago

8 0

Answer:

150

Step-by-step explanation:

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∠ A and ∠B are vertical angles. Find each angle if, m∠ A=7x+2 and m∠ B=4x+11. Solve for x

tino4ka555 [31]

Answer:

x=3

Step-by-step explanation:

Vertical angles are equal so

<A = <B

7x+2 = 4x+11

Subtract 4x from each side

7x+2-4x = 4x+11-4x

3x+2 =11

Subtract 2 from each side

3x+2-2 = 11-2

3x = 9

Divide by 3

3x/3 = 9/3

x=3

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3 years ago

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butalik [34]

Answer:

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Step-by-step explanation:

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photoshop1234 [79]

Answer:

B, A, C

Step-by-step explanation:

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3 years ago

Help me please solves this my math teacher will yell at me if I don’t get this done!!!

VARVARA [1.3K]

The answer is 75

First you subtract 180 and 165 to find that smallest angle inside the triangle(15). Then you add 15 and 90,the two angles you know, and do 180 - 105= 75.

The trick is that all angles inside a triangle equal 180 degrees. Hope this helps!

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3 years ago