Question

100 POINTS PLEASE I NEED ANSWER ASAP pleaseee help me FIND X METRES FIND X FIND X FIND X

Answer 1

843

Explanation:

the person above me did it better but i'm just gonna make it simpler for you guys :)

Answer 2

843 m (nearest metre)

Explanation:

As the triangle is not a right triangle, we need to use the cosine rule to find the length of x.

Cosine rule

`c^2=a^2+b^2-2ab \cos C`

where:

• C is the angle
• c is the side opposite the angle
• a and b are the sides adjacent to the angle

From inspection of the diagram:

• C = 83°
• c = x
• a = 760
• b = 470

Substitute these values into the formula and solve for x:

`\implies c^2=a^2+b^2-2ab \cos C`

`\implies x^2=760^2+470^2-2(760)(470) \cos 82^(\circ)`

`\implies x^2=798500-714400 \cos 83^(\circ)`

`\implies x=\sqrt{798500-714400 \cos 83^(\circ)}`

`\implies x=843.4669769...`

`\implies x=843 \sf \:m\:\:(nearest\:metre)`