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Trava [24]
3 years ago
9

ABCD is a square. What is the measure of angle BAC? °

Mathematics
2 answers:
gladu [14]3 years ago
5 0
The angles that make a square are 4 right angles. So 360°.

<BAC is half of the square but it's not 180°.

It's 90 because you are measuring BAC not CBA or vice versa.

Conclusion, <BAC = 90°.
daser333 [38]3 years ago
3 0

Answer:

∠BAC = 45° is the measure.

Step-by-step explanation:

In a square all sides are equal and all the angles are 90°.

We have to measure the angle BAC.

since both the sides AB and BC of the triangle BAC are equal. Therefore angles opposite to these sides ∠BAC and ∠ACB will be equal.

Since ∠BAC + ∠ACB + 90° = 180° ( Sum of all angles of ΔABC = 180°)

∠BAC + ∠BAC + 90° = 180°(∠BAC = ∠ACB)

2∠BAC = 180 -90 = 90°

∠BAC = 90/2 = 45°

∠BAC = 45° is the answer.

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which shape had a larger area: a rectangle that is 7 inches by 3/4 inch, or a square with side length of 2.5 inches? Show your r
Brums [2.3K]
In order to find the area for a rectangle, you must multiply length times width, which would be 7 x 3/4 which is 5.25. In order to find the area for a square, you do length^2, also know as length x length. Which would be 2.5^2 which is 2.5 x 2.5 which is 6.25. 6.25 is larger than 5.25, so the square has a larger area.
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3 years ago
The following is an arithmetic sequence.<br> -3, 3, -3, 3, true or false
kow [346]

Answer:

False.

Step-by-step explanation:

It is a Geometric sequence with common ratio -1:

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= -3, 3, -3, 3

4 0
3 years ago
Read 2 more answers
How do I Simplify 4a – 7b + 2ab – a + b (I need step by step cause I'm trying to learn this)
Alex

Step-by-step explanation:

Ok. First of all, we need to follow the order of operations: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. We don't have any parentheses, exponents, or division to resolve, so you can skip those. So now you have: Multiplication, Addition, and Subtraction. We have multiplication in each term, but each term is fully simplified, so we have Addition and Subtraction left.

With that out of the way, let's go ahead and rearrange this equation so it is easier to solve. (<em>Note: we can only rearrange terms that are positive because subtraction is not commutative. But we can turn negative terms into "positive" terms by the method shown below.</em>)

4a - 7b + 2ab - a + b

4a + (-7b) + 2ab + (-a) + b (<em>Now the terms are all positive, so we can rearrange them, but they still have the same value.</em>)

4a + (-a) + 2ab + (-7b) + b

3a + 2ab + 7b

And there we go. Our answer is fully simplified. If you can understand this, you'll be able to simplify without isolating and rearranging the terms each time.

Hopefully this was helpful and not confusing.

4 0
3 years ago
Plz solve this question <br>Its urgent.....​
Maksim231197 [3]

Answer:

Step-by-step explanation:

tan Θ + tan 2Θ + √3 tan Θ tan 2Θ = √3

tan Θ + tan 2Θ = √3 - √3 tan Θ tan 2Θ

tan Θ + tan 2Θ = √3 ( 1 - tan Θ tan 2Θ)

(tan Θ + tan 2Θ) / (1 - tanΘ tan 2Θ) = √3

tan(Θ  + 2Θ) = √3

tan 3Θ = tan (\frac{\pi }{3})           we know tan Θ = tan α; Θ = nΠ + α, n belongs to z

3Θ = nΠ + Π/3

Θ = nπ/3 + Π/9 for all n in Z

4 0
3 years ago
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