heintzelmanvp6ir6d heintzelmanvp6ir6d
  • 25-03-2019
  • Mathematics
contestada

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

9 Find the area of the triangle Thanks class=

Respuesta :

jimrgrant1 jimrgrant1
  • 25-03-2019

Answer:

C

Step-by-step explanation:

The area (A) of the triangle is calculated using

A = [tex]\frac{1}{2}[/tex] 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 Link
mimifarooqui13
mimifarooqui13 mimifarooqui13
  • 25-03-2019

Answer:

C.[tex]63.4cm^2[/tex]

Step-by-step explanation:

I love trigonometry

the area of a triangle is equal to [tex]\frac{1}{2}*a*b*sinC[/tex]

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

[tex]\frac{1}{2}*9*15*sin70\\[/tex]

[tex]63.4cm^2[/tex]

Ver imagen mimifarooqui13
Answer Link

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