Question

help please!! i dont know how to solve this, I have to find the area to the nearest tenth (pic below)

Answer 1

First off whats the formula to find the area of a triangle?

Answer 2

1/2 * base * height

Answer 3

Can I help?

Answer 4

anyone can help! :D i would love help! I can't figure it out!

Answer 5

dear where is the fig ?

Answer 6

so fill that in 1/2 base times height

Answer 7

but what is the base and the height?

Answer 8

158 base i think and height 2

Answer 9

no 158 is the degree of the obtuse angle

Answer 10

no

Answer 11

what? :/

Answer 12

any No >90 and < 180 represent degree of obtuse angle

Answer 13

I know, I was saying that 158 was the degree of the angle

Answer 14

then where is the question worm?

Answer 15

someone please help me! I asked this 3 days ago

Answer 16

use the formula:
\(Area = \dfrac{1}{2} ab \sin C\)

here, a = 2, b = 3, C = 158

Answer 17

reference:
http://www.bbc.co.uk/bitesize/standard/maths_ii/trigonometry/sin_cosine_area_triangle/revision/3/

Answer 18

so it would be 1.1? (rounded to the nearest tenth?)

Answer 19

@Callisto @tkhunny

Answer 20

yes, correct! :)

Answer 21

Have you considered the Law of Cosines?