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3 years ago

(15 POINTS) use the points in the diagram to name the figure. please help ASAP I ONLY HAVE 10 MIN! :( thank you so much!

Mathematics

2 answers:

Olenka [21]3 years ago

8 0

Answer:

Step-by-step explanation:

B is an endpoint of this line, and C continues forever (illustrated by the arrow)

cluponka [151]3 years ago

3 0

Answer:

Its the third one

Step-by-step explanation:

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3 years ago

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3 years ago

What is the value of y? Enter your answer in the box. y = An isosceles triangle with vertices labeled A, B, and C. Side B C is t

masha68 [24]

Answer:

$y = 5$

Step-by-step explanation:

Given:

An isosceles triangle ABC with AB = AC.

∠A = $(4y+10)\°$

∠B = $75\°$

∠C = $(3x)\°$

We know that, for an isosceles triangle, the angles opposite equal sides are also equal to each other.

Therefore, ∠B = ∠C

⇒ $75 = 3x$

⇒ $x=\frac{75}{3}=25$

∴ ∠C = $3\times 25=75$ °

Now, the sum of all the interior angles of a triangle is always 180°.

$\angle A + \angle B + \angle C=180\\(4y+10)+75+75=180\\4y+10+150=180\\4y+160=180\\4y=180-160\\4y=20\\y=\frac{20}{4}=5$

Therefore, the value of 'y' is 5.

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3 years ago

(15 POINTS) use the points in the diagram to name the figure. please help ASAP I ONLY HAVE 10 MIN! :( thank you so much!​

(15 POINTS) use the points in the diagram to name the figure. please help ASAP I ONLY HAVE 10 MIN! :( thank you so much!