Question

Find the measure of a.

Answer 1

@shaik0124 can you please help me with this

Answer 2

@mathslover help here i am some wht week in this topic

Answer 3

Is this trigonometry ?

Answer 4

I don't think so this is my geometry course.

Answer 5

geometry

Answer 6

@mathslover can you help?

Answer 7

Oh!!! Sorry then :(

Answer 8

@ash2326 ? Might be he can help

Answer 9

use the cosine rule :
a^2 = 8^2 + 11^2 - 2*8*11*cos(32.2)

Answer 10

these are the options A. 3

B. 6

C. 8

D. 16

Answer 11

u have to simplify of Right side, first. dont forget use ur calculator to get the value of cos32.2

Answer 12

@ash2326 can you please help I've already failed once.

Answer 13

i dont know what you mean RadEn

Answer 14

@RadEn so you cant help me any further

Answer 15

i got the answer, but i want u try do like i gave u a hint or formula above :)

Answer 16

well i got nine but its not one of the options so ill just choose the one that is closest to it which is 8. is it 8?

Answer 17

can u get the value of cos(32.2) degrees ? it is the importan component there

Answer 18

use ur calculator :)

Answer 19

i don't get how im supposed to find the value. im really bad in math :(

Answer 20

I have a calculator i just don't know how to find the value

Answer 21

i dont get too without use a calculator :P
just push 32.2 then push cos :D

Answer 22

it gives me this 0.84619316613

Answer 23

yep. i got 0.848
nearest

Answer 24

now, apply it to :
a^2 = 8^2 + 11^2 - 2*8*11*cos(32.2)

Answer 25

A. 3

B. 6

C. 8

D. 16
these are the options

Answer 26

ok

Answer 27

it gives me 35.752 but that's not one of the options

Answer 28

a^2 = 8^2 + 11^2 - 2*8*11*0,848
a^2 = 64 + 121 - 149.248
a^2 = 35.752

Answer 29

ahha, same!

Answer 30

thats what i got too haha but thats not one of the options

Answer 31

dont forget take the squareroot for right side

Answer 32

a^2 = 35.752
a = sqrt(35.752)

Answer 33

I think its 16. what do you think

Answer 34

use ur calculator again to get the value of sqrt(35.752)