Question

Please help will give brainliest

Answer 1

Answer:

c=578

Step-by-step explanation:

To solve this we can use the law of sines.

Firstly, we need to find the measure of ∠C

As there are 180° in a triangle, we can find the difference between this and the measures of ∠A and ∠B

$180-70-52=58$

∠C=58°

Now we can setup our law of sines

$\frac{c}{sin(58)} =\frac{640}{sin(70)} \\\\c=\frac{640sin(58)}{sin(70)} \\\\c=577.58\\\\c=578$

Answer 2

Answer:

(this might be wrong but if your desperate)  518

Step-by-step explanation:

1.     70+52=122

2.    640-122= 518