Answer:
55 centimeters
Step-by-step explanation:
It is a right triangle which means it will add up to 90 degrees. You would start by adding 20 and 15 which is 35 and then subtract 35 from 90 to get 55. I hope this helped :)
Answer:
60
Step-by-step explanation:
120°+90°+90°+x=360°
or,300°+x=360°
.•.x=60°
Answer: You will need 78 acres of pastureland
Step-by-step explanation: Take 130(cows) and divide it by 100 to give you 1.3, multiply that by 60 to get 78 acres in total.
Answer:
f = 14.26 m (2 dp)
Step-by-step explanation:
Sum of interior angles of triangle = 180°
⇒ missing angle = 180 - 40 - 90 = 50°
Using sin(A)/a = sin(B)/b = sin(C)/c
⇒ sin(40)/f = sin(50)/17
⇒ 17sin(40) = f sin(50)
⇒ 17sin(40) ÷ sin(50) = f
⇒ f = 14.26 m (2 dp)