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Likurg_2 [28]
3 years ago
9

Do all triangles have right angles why or why not

Mathematics
2 answers:
katen-ka-za [31]3 years ago
8 0
No all triangles have right angle a right angle is a angle measurement of 90 degrees. some triangles are equal sides yes like 60 degrees on each angle. and the angle must equal 180 degrees. not 360  that is a whole different shape. 
Papessa [141]3 years ago
3 0
Not all triangles have right angles. A triangle is simply a closed figure with three sides and three angles, the sum of the degrees of which add up to 180°.

For instance, an equilateral triangle will will have all three angles equal to each other (60°, 60°, 60<span>°).

Some triangles may have right angles (90</span><span>°), but not all do.
Hope that helped =)</span>
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What is the length of bc in the right triangle below
worty [1.4K]
To solve for this, we need to use Pythagorean Theorum.
Pythagorean Theorum is when we add the squares of the legs (A & B) to solve for the hypotenuse (C) or the side that's across from the 90 degree angle.
The formula for Pythagorean Theorum is A^2 + B^2 = C^2.

We have our two leg lengths, 15 and 36 (A & B).
Square 15 and 36.
15^2 = 225
36^2 = 1,296

Now that we have our side lengths, let's add them up.
225 + 1,296 = 1,521.

Now, to solve for C, we need to square root our sum.

The square root of 1,521 is 39.

Your hypotenuse is 39.

Your answer is C.) 39.

I hope this helps!
5 0
3 years ago
Read 2 more answers
Help pleaseeee I need the answer asap
zubka84 [21]

Answer:

1 -  \frac{7}{9}  \times  \frac{5}{9}  =  \frac{46}{81}

Step-by-step explanation:

Basically, if you want to find the probability of getting either outcomes, you will need to subtract the probability of getting neither outcomes in the question. The probability for both outcomes are 7/9 and 5/9 respectively. You will have to multiply to get the probability of getting both of the non-desired outcomes. Hence, it gives the equation above

6 0
2 years ago
Really confused on how to approach this problem.​
kkurt [141]

Step-by-step explanation:

For this Q, you should draw a triangle to help you with the values.

cos x =

\frac{ \sqrt{2} }{2}

csc x =

\frac{2}{ \sqrt{2} }

tan x = sin x/ cos x

= 1

cot x = 1

sec x =

\frac{ \sqrt{2} }{2}

x = 45 degrees

6 0
3 years ago
An initial investment of $60.00 increases in value by 15% each year. Which of the following statements are true? Select all that
aivan3 [116]
The situations can be represented by the exponential function f(x)=60x1.15^x
After 7.86 years the value of the investment will be three times the initial value (If you round to the nearest dollar)
After 8 years the value of the investment will be $184.00 (If you round to the nearest dollar)
3 0
4 years ago
Read 2 more answers
Please help I’m being timed.
MAXImum [283]

Answer:

da answerr is six

if DF is 6 and all sides are equal in length the EF side is going to be 6 as well

3 0
3 years ago
Read 2 more answers
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