Question

the area of triangle is 12cm².two side are 6 cm and 12 cm. the included angle is​

Answer 1

Explanation:

Let a=6cm and b=12cm

Therefore the included angle is θ=∠C

area=

2

(height)(base)

area=

2

bh

now h=asinθ

therefore

area=

2

basinθ

12=

2

(12)(6)sinθ

sinC=sinθ=

3

1

Hence C=θ=sin

−

1

(

3

1

MARK AS BRAINLIST

)