2 years ago

What is the value of y? A. 120° B. 66° C. Cannot be determined D. 60°

Mathematics

1 answer:

lesya692 [45]2 years ago

6 0

The answer is D because all sides are equal and it’s a equilateral triangle

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r = 1/15

a branliest from the answer will be appreciated

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Calculate the side lengths a and b to two decimal places.

Zinaida [17]

Answer:

$a=10.92 units$

$b=14.51 units$

Step-by-step explanation:

We are given that c=6 units

$\angle A=43^{\circ}$

$\angle B=115^{\circ}$

We have to find the side length a and b.

We know that sum of angles of a triangle =180 degrees

$\angle A+\angle B+\angle C=180$

Substitute the values then we get

$43+115+\angle C=180$

$158+\angle C=180$

$\angle C=180-158=22^{\circ}$

sine law: $\frac{a}{sin A}=\frac{b}{sin B}=\frac{c}{sin C}$

$\frac{a}{sin 43^{\circ}}=\frac{6}{sin 22^{\circ}}$

$a=\frac{6}{sin 22^{\circ}}\times sin 43^{\circ}$

$a=10.92 units$

$\frac{b}{sin 115^{\circ}}=\frac{6}{sin 22^{\circ}}$

$b=\frac{6}{sin 22^{\circ}}\times sin 115^{\circ}=14.51$

$b=14.51 units$

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2 years ago

Name the property of equality that justifies the following statement: If l = m, then m = l. Symmetric Property Multiplication Pr

nydimaria [60]

Symmetric property is the answer ;)

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A.0.5×10^4

Juliette [100K]

Answer:

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Step-by-step explanation:

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Answer and Step-by-step explanation:

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This is a graph of this expression.

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