Question

'o' is the center of the angle
a)what is the center angle of arc APB
b)what is angle ACB?

it is a long answer type question so do it step by step in long way​

Answer 1

Step-by-step explanation:

Environment is the nature and surroundings in which all plants, animals, humans and other living beings live and operate. ... It includes sunlight, atmosphere, land, water, plants, animals, sea life, minerals, different species and everything that occurs naturally on earth.

Answer 2

In given figure ,O is the center of circle .∠AOB=1000

Then external ∠AOB=360 0 −100

0 =260

0

We know that the angle subtended by an arc at the center of a circle is twice

the angle subtended by the same arc at any other point on the remaining part of the circle.