Question

Help me please respect badly need it right now hope you can help me ​

Answer 1

Answer:

a=14

c=7×sq.rt.3

Step-by-step explanation:

$1. \\ \cos( \alpha ) = {base} \div {hypotenus} \\ \sin( \alpha ) = perpendicular \div hypotenus \\ \sin(30 = \frac{1}{2} \\ \cos(30) ) = \sqrt{3 } \div 2$

use base =c

perpendicular =7

Hypotenuse =a

you will find

for

cos30

sq.rt.3÷2=c/a

c=a×sq.rt.3/2

for sin30

1/2=7/a

a=14

now

c=14×sq.rt.3/2=7×sq.rt.3