Question

Hheeeeeeellllppppp meee pleeeaasseee!?!?!?!!


In triangle ABC, if the lengths of sides a and c are 8 centimeters and 16 centimeters, respectively, and the measure of angle C is 35 degrees, what is the measure of angle A to two decimal places?

A. 16.67 degrees

B. 17.50 degrees

C. 26.57 degrees

D. 35.53 degrees

Answer 1

please note that, side b is equal to:
\[b ^{2}=a ^{2}+c ^{2}-2a*c*\cos(35°)\]
please calculate b, inserting values for a and c

Answer 2

Whhhaaaaa?

Answer 3

I don't know how to do that..

Answer 4

that is the Carnot theorem. I applied Carnot Theorem in order to find measure of b

Answer 5

I don't understand any of this.. I don't even know why I have to learn it. They never succeeded to teach me these things so now I have no clue what I'm doing. :/

Answer 6

please is this drawing right?

Answer 7

Idk I think so..

Answer 8

now we have to know all elements of that triangle

Answer 9

please, have you, at your school study Carnot theorem or"projection theore"?

Answer 10

oops studied...

Answer 11

No...

Answer 12

I'm homeschooled they don't tell me anything

Answer 13

what theorems have you studied then, at your school?

Answer 14

Idek..

Answer 15

what do you know about triangles?

Answer 16

what theorems do you know about triangles?

Answer 17

please, if you can not help me, I can not help you!