Question

Solve triangles. round to the nearest tenth А 6 В 7.2 C

Answer 1

AB = 9.4

Explanation:

The Pythagoras theorem says that if we have a triangle of side lengths a, b and hypotenuse c is given by

`a^2+b^2=c^2`

Now in our case, a = 6 and b = 7.2; therefore,

`6^2+7.2^2=c^2`
`\rightarrow87.84=c^2`

Taking the square root of both sides gives

`c=\sqrt[]{87.84}`
`c=9.372`

rounding to the nearest tenth gives

`\boxed{c=9.4.}`

which is our answer!