Question

Find the area of the triangle to the nearest tenth.
7 cm
87 degrees
11 cm
O A. 2.0 cm²
O B. 38.4 cm2
O C. 734.6 cm2
O D. 76.9 cm2​

Answer 1

Answer:

$A

=

a

b

\frac{

sin

γ}

2

\\ =

7

·

11

·

\frac{

sin

(

87

°)}

2

\\

≈

38.44724$

Answer B is correct.