Atrey
Atrey Atrey
  • 11-01-2018
  • Mathematics
contestada

Given:
AB tangent at D, AD = OD = 4
Find: Area of the shaded region

Given AB tangent at D AD OD 4 Find Area of the shaded region class=

Respuesta :

asdfadfaeasdf asdfadfaeasdf
  • 11-01-2018
AB tangent at D, AD = OD = 4
so triangle OAD is right angle with side of 4 and 4.
area of OAD = 1/2 * 4 * 4 = 8

Angle AOD = DAO = 45 deg.
so circular sector OCD area = area of circle O * 45/360
= pi * 4 * 4 * 45/360
= 2pi

Shade area ACD = trigangle OAD - circular sector OCD
= 8 - 2pi
= 1.72




Answer Link
tiktokqueen94 tiktokqueen94
  • 20-02-2021

Answer:

8-2[tex]\pi[/tex]

Step-by-step explanation:

Answer Link

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