Question

What is the length of side AC in AABC, which is right angled at B if BC = 5 cm and ZBAC = 30°?
plz with steps​

Answer 1

Answer:

What is the length of side AC in AABC, which is right angled at B if BC = 5 cm and ZBAC = 30°?

plz with steps

Step-by-step explanation:

What is the length of side AC in AABC, which is right angled at B if BC = 5 cm and ZBAC = 30°?

plz with stepsWhat is the length of side AC in AABC, which is right angled at B if BC = 5 cm and ZBAC = 30°?

plz with stepsWhat is the length of side AC in AABC, which is right angled at B if BC = 5 cm and ZBAC = 30°?

plz with steps

Answer 2

Step-by-step explanation:

We are given

∠BAC=30

, i.e.,

∠A=30

and BC = 5cm

Now sin A = BC/AC

or sin 30degree= 5/AC

or

5/AC =1/2

Or AC=2*5=10

To find AB, we have,

AB/AC=cos A

Or

AB/10 = cos 30

Or AB /10 = √3/2

AB =√3/2 *10 Or

5√3

so AB= 5 root 3

and AC is 10 CM