Answer:
0.623, 6.023, 6.23, 62.30
Step-by-step explanation:
Use the law of cosines.
a2+b2−2abcosC=c2
Find the measure of angle C. It is the opposite side of c.
c2−a2−b2−2ab=cosC
cosC=13.62−22.52−182−2(22.5)(18)≈0.797
C=cos−10.797=0.649 rad=37.19∘
angle B:
a2+c2−2accosB=b2
cosB=b2−a2−c2−2ac
B=cos−1b2−a2−c2−2ac=cos−1182−22.52−13.62−2(22.5)(13.6)≈0.927 rad=53.13∘
angle A:
b2+c2−2bccosA=a2
A=89.68∘
Can i get brainliest if my answer is true hehehehe :p
The total length of the two bridges is 5020 ft.
In order to find the combined length of these two bridges, simply add the two numbers together.
4260 + 760 = 5020.
Answer:20
Step-by-step explanation:
5*2=20
