By the Pythagorean theorem
AB = √(12²+5²) = √169 = 13 units

$\frac{AD}{AB} = \frac{BD}{BC} \ \to \ BC= \frac{AB*BD}{AD}= \frac{13*12}{5}= 31.2 \ units$

8 0

2 years ago

the area of the top of a rectangular table is 323 square feet. If the length of the table is 19 feet , what is the width

sergejj [24]

Answer:

hello :

the area is : A= w ×l ... w : the width l : the length

A = 323 l = 19 w ?

l = A/w

l = 323/ 19

l = 17 feet

4 0

3 years ago

What is the surface area of the prism? A. 180 in2 B. 204 in2 C. 120 in2 D. 192 in2

alukav5142 [94]

Asking the Math Gods...

B. 204in^2

Surface Area (SA) =√3 * a²+ 3 * a * h2

8 0

2 years ago