Question

#9. Find the area of the triangle. Thanks!

Answer 1

Answer:

C

Step-by-step explanation:

The area (A) of the triangle is calculated using

A = $\frac{1}{2}$ ab sinC

where a, b are the 2 sides and C is the angle between them

here a = 9, b = 15 and C = 70°, hence

A = 0.5 × 9 × 15 × sin70° = 63.4 cm² → C

Answer 2

Answer:

C.$63.4cm^2$

Step-by-step explanation:

I love trigonometry

the area of a triangle is equal to $\frac{1}{2}*a*b*sinC$

we have a b and Angle C so just put that in the formula :)

$\frac{1}{2}*9*15*sin70$

$63.4cm^2$