2 years ago

I'm working on a review and my class ended....help?

Mathematics

1 answer:

White raven [17]2 years ago

6 0

1- 2.5 seconds
2- 1.25 seconds
3- 3.75 seconds

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2 years ago

Find The value of x, y and z

Ratling [72]

Answer:

x = 18 ; y = 10 ; z = 102°

Step-by-step explanation:

The triangle in the pic is an isosceles triangle.

As it is an isosceles triangle , it's two sides will be equal .

$= > 3x - 42 = 12$

$= > 3x = 42 + 12 = 54$

$= > x = \frac{54}{3} = 18$

Also, both the base angles will be equal.

$4y - 1 = 39$

$= > 4y = 39 + 1 = 40$

$= > y = \frac{40}{4} = 10$

According to angle sum property of a triangle , sum of measure of all the angles of a triangle is equal to 180°. So,

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$= > z = 180 - 78 = 102$

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2 years ago

I'm working on a review and my class ended....help?​

I'm working on a review and my class ended....help?