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Mathematics 74 Online
HarleyQuinn112:

i need help on this question please anyone

HarleyQuinn112:

1 attachment
HarleyQuinn112:

@Vocaloid can you help me please

Shadow:

I gotchu

Shadow:

Since this triangle is a right angle (has a 90 degree angle) and they also show a 60 degree angle, we know that the last angle must be 30 degrees, since all off the angles of a triangle must equal 180. Thus we can use the 30-60-90 rule. |dw:1553120119050:dw|

Shadow:

Insane drawing skills, I know

Shadow:

43 = 2x

Shadow:

Solve for x, then multiply x by sqrt 3, and you have the height of the pole.

Shadow:

Be sure to round to the nearest tenth, aka this place: |dw:1553120257058:dw|

jimthompson5910:

You can also use the sine rule since sin(angle) = opposite/hypotenuse |dw:1553120417244:dw| sin(60) = x/43 43*sin(60) = 43(x/43) .... multiply both sides by 43 43*sin(60) = x x = 43*sin(60) x = ?? Use a calculator to compute the answer. Make sure you are in degree mode Here is a calculator if you don't have one https://www.desmos.com/scientific

HarleyQuinn112:

thank you so so so so so much @Shadow

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