The length of the sides of a triangular garden are 10m 11m 13m.Find the measure of the angle opposite the longest side to the ne
arest tenth of a degree
1 answer:
C^2=a^2+b^2-2abcosC
13^2=10^2+11^2-2×10×11×cos(°)
169=100+121-220cos(°)
220cos(°)=100+121-169
220cos(°)=52
cos(°)= 13/55
°=cos-1(13/55)
°=76.328°
You might be interested in
Answer:
3.92
Step-by-step explanation:
19.60×20=3.92
The answers is the original price of the jeans is 3.92
Answer: 77.84
Step-by-step explanation: you subtract 235.68 and 157.84 and that is you answer,
Answer:
36
Step-by-step explanation:
6 x 2= 12
12 x 3= 36
12÷3=4
cause 1/3 in this situation is 3 cause 12÷4 is 3
