So to figure this out, you need to do 2/3 *12 Because 3/3 = the whole body and 2/3 is 2 times 1/3 of the body. The correct answer would be 8. Also, you can draw a rectangle to model this and split it into 3 parts.
Answer:
7
Step-by-step explanation:
the altitude creates two congruent 30-60-90° triangles
the ratio of the sides in a 30-60-90°, respectively, are 1 : : 2
therefore we can set up a proportion to find the side length:
let 'x' = side length of equilateral Δ
/ 1 = 21 / x
cross-multiply:
x = 21
x = 21 /
rationalize the denominator by multiplying numerator and denominator by
21 / · = 21 / 3 or 7
60 miles per hour as yard pre second is 29.3333. 29.3333 rounded to the nearest hundredth is 29.33
Answer:
the ladder reaches 8 feet up
Step-by-step explanation:
:D