Use the figure below to determine the length of sides b and c.

Step-by-step explanation:

step 1

Find the value of c

we know that

In the right triangle of the figure

The sine of angle of 30 degrees is equal to divide the opposite side to the angle of 30 degrees by the hypotenuse

so

solve for c

Remember that

substitute

step 2

Find the value of b

Applying the Pythagorean Theorem

substitute the given values

simplify

therefore

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

45

step-by-step explanation: