Step-by-step explanation:
In ΔAPO and ΔBPO,
( Length of tangents from an external point to a circle are equal)
( Radii of same circle)
( Common side)
∴ ΔAPO = ΔBPO (SSS Congruence) ---------------(1)
Given that, ∠AOP = 64°
∠AOP = ∠BOP [ From (1) ]
⇒∠BOP = 64
Now,
∠BOP + ∠BOD = 180° ( Linear Pair)
∠BOD = 180 - 64 (∵ ∠BOP = 64°)
∴ ∠BOD = 116°
Hope that helps!!
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It took a lot of time to type it!!
Answer: 11
Step-by-step explanation:The given expression is:
=
=
=
Substituting the value of b=-2 in above expression, we get
=
=
=
Thus, the value of the given expression is -11.
Answer:
Step-by-step explanation:
the diameter is the measurement that is all the way across the circle which is given to you so the diameter is 7cm. To find the radius it is half the way across the circle so it is half the diameter so in this case the radius would be 3.5cm
Answer:
B. 30
Step-by-step explanation:
A line is 180 degrees, so when we have 100, we subtract that from 180 to get the interior angle of 80.
A triangle has a sum of 180, so we just subtract 80 and 70 from 180 to get 30.
Hope this helps
Answer:
a=5
Step-by-step explanation:
a^2+b^2=c^2
c^2-b^2=a^2
13^2-12^2=a^2
169-144=a^2
25=a^2
5=a
