cityprep1680 cityprep1680
  • 04-07-2017
  • Mathematics
contestada

Find the length of the roof. Round to the nearest hundredth of a foot

Find the length of the roof Round to the nearest hundredth of a foot class=

Respuesta :

jimthompson5910 jimthompson5910
  • 04-07-2017
Split the original triangle down the middle to form two congruent triangles. Focus on one of the two smaller triangles. With 36 degrees as the reference angle, we have 6.25 as the adjacent side and R as the hypotenuse

Use the cosine function

cos(angle) = adj/hyp
cos(36) = 6.25/R
R*cos(36) = 6.25
R = 6.25/cos(36)
R = 7.72542485937369

Multiply both sides by 2 to get
R = 7.72542485937369
2*R = 2*7.72542485937369
2*R = 15.4508497187473

So that rounds to 15.45

Answer: 15.45 feet
Answer Link

Otras preguntas

How do I increase the points on my questions??
5 basic needs of individuals​
what is folding geography
What number is 40% of 720 I need work shown please show your work and don’t make it tricky thank you
what number taken 9% out of it = 1,436.91
Chris gets out of school at 2:45 pm on Halloween. It takes him 10 minutes to ride his bike home, 20 minutes to do his chores, and 10 minutes to eat a snack. Wha
PLEASE HELP!!!!!Question:In Texas, 3 armadillos ate 50 pounds of insects in one night. At this rate, how many pounds of insects 18 armadillos eat in one night??
What makes a bond polar?
rewrite 1/3 book - 5/6 hour as a unit rate.
Match the following. a. The maintenance of a constant internal body environment b. A higher salt concentration than inside the cell c. A lower salt concentra