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3 years ago

What is the value of y? Enter your answer, as an exact value, in the box.

Mathematics

1 answer:

sladkih [1.3K]3 years ago

8 0

Answer:

y=4√3 units

Step-by-step explanation:

Hi there!

We are given ΔABC, which is a right triangle (m<C=90°), m<A=60°, AB=8, and BC=y

We need to find the value of y (BC)

The side AB is the hypotenuse of the (the side opposite from the right angle).

BC is a leg, which is a side that makes up the right angle.

Now, if we have a right triangle that has one of the acute angles as 60°, the side OPPOSITE from that 60° angle (in this case, BC) is equal to $\frac{a\sqrt{3}}{2}$ , where a is the length of the hypotenuse

Since we have the hypotenuse given as 8, the length of BC (y) is $\frac{8\sqrt{3}}{2}$ , or 4√3

so <u>y=4√3 units</u>

Hope this helps!

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= $[\frac{9}{2.6} - \frac{2.5}{1} ]^{2}$

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