1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Burka [1]
3 years ago
9

Find the acute angle between the sides of a rhombus whose diagonals are 8cm and 12cm long

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
4 0

Answer:

67.38°

Step-by-step explanation:

The diagonals of a rhombus intersect at their midpoints and make a right angle. They also divide the angles of the rhombus in two equal angles.

So, to find the acute angle of the rhombus, we can use the tangent relation of half this angle in the small triangle made when drawing the diagonals:

tan(angle/2) = 4 / 6

tan(angle/2) = 0.666

angle/2 = 33.69

angle = 67.38°

So the acute angle of the rhombus is 67.38 degrees.

Please check the image attached for better comprehension.

You might be interested in
How does the slope of a line relate to real world situations
snow_lady [41]
I think construction jobs might use it

7 0
3 years ago
Evan was carrying forward a balance of $300 from the previous month. His annual interest rate is 30%. Use computation to determi
sattari [20]

<u>Answer</u>:

The interest charged for this month is $7.5

<u>Step-by-step explanation:</u>

Given:

Principal = $300

Interest = 30%

Time =  1 month

To Find:  

The interest charged for this month = ?

Solution:

we know that the  interest charged = principal \times \text {Interest rate} \times time

1 month can also be written as \frac{1}{12}

Substituting the values,

interest charged:

=> 300 \times 30%  \times \frac{1}{12}

=> 300 \times \frac{30}{100} \times \frac{1}{12}

=> 300 \times \frac{3}{120}

=>\frac{900}{120}

=>\frac{30}{4}

=>\frac{15}{2}

=> 7.5

6 0
3 years ago
Graph the parabola y=-3x^2+24x-42
Usimov [2.4K]
Based on the vertex and table this is the graph.

5 0
3 years ago
Which set of numbers may represent the lengths of the sides of a triangle? (A) {2,5,9} (B) {6,6,7} (C) {6,4,2} (D) {7,8,1}
Olin [163]

Answer:

B {6, 6, 7}

Step-by-step explanation:

Which set of numbers may represent the lengths of the sides of a triangle? (A) {2,5,9} (B) {6,6,7} (C) {6,4,2} (D) {7,8,1}

For a given triangle with 3 sides, the sun of the length of any two sides must be greater Than the third side. This can be expressed mathematically as;

Let the side be ;

x, y and z

Then:

x > (y + z) or

y > (x + z) or

z > (x + y)

For A{2,5,9}

(2 + 5) < 9 (does not meet criteria)

For B {6,6,7}

(6 +6) > 7

(7 +6) > 6

Meets all criteria

For C {6,4,2}

(4 +2) is not greater Than 6 (does not meet criteria)

For D {7,8,1}

(7 +1) is not greater Than 8 ( does not meet criteria)

3 0
3 years ago
Eliminate the parameter of the following equations and write in rectangular form in terms of x and y.
rosijanka [135]

Solve for cos(t) and sin(t):

x = 2 + 3 cos(t)   ⇒   cos(t) = (x - 2)/3

y = 1 - sin(t)   ⇒   sin(t) = 1 - y

Recall the Pythagorean identity,

sin²(t) + cos²(t) = 1

It follows that

((x - 2)/3)² + (1 - y)² = 1

or

(x - 2)²/9 + (y - 1)² = 1

5 0
3 years ago
Other questions:
  • How do i solve this?
    14·1 answer
  • The length of a rectangle is 24 units. Can the perimeter x of the rectangle be 60 units when the width y is 11 units
    13·1 answer
  • X^3 = 125 <br><br> x = ? <br><br> Help!!!!
    8·2 answers
  • PLEASE HURRY!!!!!
    10·2 answers
  • Veronica has to multiply 398 x 18. She says she can multiply 400 x 18 and then take away one group of 18
    10·1 answer
  • Does anyone know what these 2 problems are? The answer is on the bottom. :)
    6·1 answer
  • Very confused appreciate the help please ASAP
    6·2 answers
  • Hw
    7·1 answer
  • Two numbers differ by 3. Their product<br> is 28. Find the numbers.
    6·1 answer
  • One and Two step equations Escape Room.: The teeth on this key are busted. Now they must be readjusted. Find the code.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!