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jessysmith9678
30.01.2022 •
Mathematics
Hii pls pls help me I will give
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Ответ:
X=15.5 °
Step-by-step explanation:
AOB is an isosceles triangle since AO=BO (radius of the circle), to angle OAB=OBA= (180-53)/2= 63.5 °
Angle CAB=63.5+11=74.5 °
And the angle ACB=53/2= 26.5° (inscribed angle)
so in the triangle ABC: the angle ABC= 180- angle CBA + angle ACB =180-(74.5+26.5 )= 79 °
so x= angle ABC - angle OBA = 79 - 63.5 = 15.5 °
Ответ:
The area of the shaded region is 38.50 square units
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
The area of the shaded region is equal to the area of triangle ABE plus the area of triangle CDE
Remember that the area of triangle is equal to
where
b is the base
h is the height
Find the area of triangle ABE
substitute the values
Find the area of triangle CDE
substitute the values
Find the area of the shaded region