3 years ago

Help I will be marking brainliest!!!

Mathematics

2 answers:

IRISSAK [1]3 years ago

3 0

Answer:

im not good with trigangles but illtry to help

Step-by-step explanation:

Anni [7]3 years ago

3 0

Answer:

Step-by-step explanation:

$sin60=\frac{HR}{72}\\ \\ HR=72sin60\\ \\ \text{They are checking to see if you know the relationships of the 30,60,90 triangle whos sides opposite of those angles are }1,\sqrt{3},2\\ \\ sin60=\frac{\sqrt{3}}{2}\\ \\ HR=\frac{72\sqrt{3}}{2}\\ \\HR=36\sqrt{3}$

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