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aleksandr82 [10.1K]
3 years ago
6

Given ∠A and ∠B are vertical angles with m∠A=20x+10 and m∠B=30x−10 .

Mathematics
2 answers:
Ksivusya [100]3 years ago
6 0

Answer:

9

Step-by-step explanation:

MrRissso [65]3 years ago
5 0

Answer:

since angle a and b are vertical angles

therefore we can say that,

i) <A=<B

or,20x+10=30x-10

or,10+10=30x-20x

or,20=10x

.°. x=10.

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What is the value of x? Enter your answer in the box. 68mm 57mm 129.2mm
GarryVolchara [31]

Question:

What is the value of x? Enter your answer in the box. 68mm 57mm 129.2mm

The image of the triangle is attached below:

Answer:

The value of x is 98mm

Explanation:

It is given that VT = 57, TK = 129.2, YK = 68 and VK = x

Now, we need to find the value of x.

We shall determine the value of x, using angle bisector theorem,

\frac{YK}{TK} =\frac{YV}{VT}

Let us substitute the values, we get,

\frac{68}{129.2}=\frac{x-68}{57}

Switch sides, we have,

\frac{x-68}{57}=\frac{68}{129.2}

Multiply both sides by 57,

\frac{57(x-68)}{57}=\frac{68 *57}{129.2}

Simplifying, we get,

x-68=30

Adding both sides by 68, we have,

x=98

Thus, the value of x is 98mm

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Hi there

I am glad to help you

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