jorja58
jorja58 jorja58
  • 02-03-2020
  • Mathematics
contestada

If the area of a triangle is 48, what is the value of x to the nearest degree?

If the area of a triangle is 48 what is the value of x to the nearest degree class=

Respuesta :

jimrgrant1 jimrgrant1
  • 02-03-2020

Answer:

x ≈ 56°

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height )

Here b = 8 and A = 48, thus

[tex]\frac{1}{2}[/tex] × 8 × h = 48, that is

4h = 48 ( divide both sides by 4 )

h = 12

Using the tangent ratio in the right triangle

tan x = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{12}{8}[/tex], thus

x = [tex]tan^{-1}[/tex]( [tex]\frac{12}{8}[/tex] ) ≈ 56° ( to the nearest degree )

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