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°
Answer:
65
Step-by-step explanation:
Its b because there are three multiples of 4 and if you multiply the three by two you get the six
Answer:
104
Step-by-step explanation:
40 x 260
/100 = 104
Answer:
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Step-by-step explanation:
