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3 years ago

HELP ASAP THIS IS GEOMETRY

Mathematics

1 answer:

tekilochka [14]3 years ago

3 0

Answer:

x=48

y=70

step by step explanation:

In the question,

Since the triangle two sides of the traingle is equal, it is an isosceles triangle.

For an isosceles triangle, angles opposite to equal sides are equal,

Hence,

$(x + 7) = 55$

$x = 55 - 7$

$x = 48$

$y = 180 - (55 + 55)$

$y = 180- 110$

$y = 70$

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3 years ago

1f 3/4 gallon of paint can cover 1/8 of the fence how many gallons will he need to paint the whole fence

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Hope this helps!

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4 years ago

Help me !!

weeeeeb [17]

Short Answer C
Nice little problem. The catch is that alpha and beta both add up to 90 degrees.
Here's why.

α + β + right angle = 180° All triangles have 180° A right and = 90°.
α + β + 90 = 180 Right angles are 90° Now subtract 90° from both sides
α + β = 180 - 90
α + β = 90

Now all you have to do is put in the x values for alpha and beta and equate them to 90

5x/3 + 20 + 2x/3 + 14 = 90 Collect the light terms.
5x/3 + 2x/3 + 20 + 14 = 90
7x/3 + 34 = 90 Subtract 24 from both sides.
7x/3 = 90 - 34
7x/3 = 56 Multiply by sides by 3
7x = 3*56
7x = 168 Divide by 7
x = 168/7
x = 24

That's not quite the answer
The question wants alpha.
α = 5x / 3 + 20
α = 5*24/3 + 20
α = 120/3 + 20
α = 40 + 20
α = 60

Answer C <<<<<<

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3 years ago