The dimensions of a screen are 21 ft by 20 ft. Find the length of the diagonal .

Mathematics

1 answer:

mote1985 [20]3 years ago

7 0

Answer:

29 ft

Step-by-step explanation:

the screens have 90 degree angles so they form right triangles with the diagonal, so use Pythagorean theorem to solve for the diagonal

diagonal² = 21² +20² , square and square root both sides of the equation

diagonal = √441+400, add

diagonal = √841, square root

diagonal = 29ft

You might be interested in

What is the solution to this inequality? I need help ASAP

Norma-Jean [14]

Answer:

b option

x<-4 is the correct answer

7 0

3 years ago

Given that one foot is approximately equal to 0.3048 meters, covert the stadium area of 3 million square feet to square meters.

malfutka [58]

The stadium area is 278,709 meters squared.

If 1 ft = 0.3048 meters 
1square feet = 0.3048 x 0.3048 = 0.09290304 square meter. 

Then 3,000,000 square feet x 0.09290304 sq. m = 278,709.12

8 0

4 years ago

Can someone help me

allochka39001 [22]

Answer:

The answer is D, as the line does not stop. So it’s infinity.

5 0

3 years ago

The Cobb family decided to go roller skating for their reunion. There were a total of 44 people there and all went roller skatin

Zigmanuir [339]

$x-children\\\\y-adults\\\\ \left \{ {{x+y=44\ \ -->x=44-y} \atop {3*x+5*y=168}\ \ \ \ \ \ \ \ \ \ } \right. \\\\
Substitution\ method\ \\\\3(44-y)+5y=168\\\\132-3y+5y=168\\\\2y=168-132\\\\2y=36 \ \ |:2\\\y=18\\\x=44-y=44-18=26\\\\There \ were\ 26\ children.$