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3 years ago

Help me please. I dont understand this question.

Mathematics

1 answer:

ziro4ka [17]3 years ago

5 0

Answer:

y = 100°

Step-by-step explanation:

I can't see the full question, but I'm guessing you need to find the measure of angle y.

The total angle sum of a polygon can be calculated with the formula

T = 180°(n - 2) where T is the total angle measure, and n i the number of sides.

For our shape, there are 4 sides, so n = 4. Plug that in and simplify...

T = 180°(4 - 2)

T = 180°(2)

T = 360°

We are given 3 of the angles, so angle y is

y = 360 - 107 - 104 - 49

y = 100°

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Plz solve i beg i really need help i beg u guys

Dmitry_Shevchenko [17]

check the picture below.

if ∡F = 90° and ∡D = 30°, then the ∡A = 60°, meaning the triangle is a 30-60-90 triangle and therefore we can use the 30-60-90 rule as you see in the picture.

$\bf \textit{area of a triangle}\\\\
A=\cfrac{1}{2}bh~~
\begin{cases}
b=base\\
h=height\\[-0.5em]
\hrulefill\\
h=7\sqrt{3}\\
b=7
\end{cases}\implies A=\cfrac{1}{2}(7)(7\sqrt{3})
\\\\\\
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