Question

Help find length of ac n explain please thanks

Answer 1

11.66 which is approximately 12

Explanation:

by using Pythagoras method

`a^(2)+b^(2)=c^(2) because c is the hypotenuse`

`6^(2)+10^(2)=c^(2)`

`36+100=c^(2)`

`136=c^(2)`

`√(136)=√(c)`

`c=11.66`

Answer 2

AC = 12.5 cm

Explanation:

use cosine law c^2 = a^2 + b^2 − 2ab cos(C)

c^2 = 6^2 + 10^2 - 2(6)(10)(cosin100)

c^2 = 156.84

c= √156.84

c= 12.5 cm

The cosine rule is used when we are given either three sides or two sides and the included angle.