Answer:
B. 
Step-by-step explanation:
<em><u>To find the perimeter, use the formula:</u></em>
P = a + b + c
P = 12 + 12 + 9.7
P = 33.7
<em><u>To find area, use the formula:</u></em>
A = 
A = 
A = 
A = 54
Answer:
47°
Step-by-step explanation:
The sum of interior angles in a triangle is equal to 180° so
48 + 85 + x = 180 add like terms
133 + x = 180 subtract 133 from both sides
x = 47°
Answer:
she must let out the string when the kite is 700 ft away from her at 20 ft/s
Explanation:
given information:
a = the distance between the girl
b = the length of the string
a = 300
da/dt = 20 ft/s
c =500 ft, dc/dt = ?