All categories

2 years ago

A triangle has the side lengths of 12 cm, 15 cm, and 20 cm. Classify it as acute, obtuse, or right.

Mathematics

1 answer:

umka21 [38]2 years ago

5 0

Answer:

Obtuse

Step-by-step explanation:

Plugging the numbers into the Pythagorean Theorem (a^2 + b^2 = c ^2)

20^2 = 12^2 + 15^2

400 > 144 + 225

400 > 369

Because of the Converse of the Pythagorean Theorem, which tells us if c is greater than a+b, it is obtuse

You might be interested in

Help pleaseeeee it’s urgent!!!

Ad libitum [116K]

Answer:

(2,-7)

Step-by-step explanation:

Use the midpoint formula! (Attached is a picture of it!)

1) Plug in the values:

(5-1)/2,(-6+-8)/2

2) Simplify:

4/2,-14/2

3) Solve:

(2,-7)

6 0

3 years ago

A simple question:<br><br><br>Is a vector made like or ?

agasfer [191]

Answer:

A vector is a quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another.

4 0

2 years ago

I NEED HELP ASAP! In a magic square, the sum of the numbers in each row, column, and diagonal is the same. Write and solve equat

Trava [24]

Answer:

$a=22,\\b=31,\\c=13$

Step-by-step explanation:

When choosing equations to write, make sure you choose a pair that allow you to isolate a variable and solve for it.

Sample solution:

$a+25+28=16+25+34,\\\\a+28=16+34,\\a+28=50,\\a=\boxed{22}$

$16+b+28=16+25+34,\\b+44=75,\\b=\boxed{31}$

$34+c+28=16+25+34,\\c+28=41,\\c=\boxed{13}$

8 0

2 years ago

Match each addition operation to the correct sum. 0 0.65 more than -4.35 -3.66 1.98 added to 3.13 5.11 4.34 added to -8 -3.70 9.

Salsk061 [2.6K]

Answer:

THIS IS TOO CONFUSING

Step-by-step explanation:

3 0

3 years ago

Ernest has 3/4 of a yard of ribbon. She used 1/2 of it to wrap a gift. How much ribbon did she use

Ivenika [448]

$\frac{3}{4} (yard) \times \frac{1}{2} = \frac{3}{8} (yard) \ \\$

5 0

2 years ago