What are the important questions of exercise 10.5 of class 9 cbse maths
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What are the important questions of exercise 10.5 of class 9 cbse maths
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Step-by-step explanation:
question 1 ,5,6,8 are some important question
Answer:
9 Math
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Ex 10.1
Ex 10.2 and 10.3
Ex 10.4
Ex 10.5 Part 1
Ex 10.5 Part 2
Ex 10.5 Part 3
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Circle
Exercise 10.5 Part 1
Question 1: In the given figure, A, B and C are three points on a circle with centre O such that ∠BOC = 30° and ∠AOB = 60°. If D is a point on the circle other than the arc ABC, find ∠ADC.
circle exercise 10.5 question 1 figure
Answer: ∠AOC = 60° + 30° = 90°
Since angle made by an arc on the centre is double the angle made anywhere else on the circle
Hence, ∠ADC = 90°/2 = 45°
Step-by-step explanation:
most important question