What is the area of the shaded region?
13 km
22 km
square kilometers

Step-by-step explanation:

Area of the triangle is

= 1 /2 * base * height

= 1 /2 * 22 * 13

= 143 square kilometers

Hope it will help :)❤

58.5

Step-by-step explanation:    

( (22 * 13) / 2 ) - ( (13 * 13) / 2 ) = ( 286 / 2 ) - ( 169 / 2 ) = 143 - 84.5 = 58.5

Answered your previous post about this question, this is the corrected version. Read the 22 as 23.  

a) false; the points do not have to be in a straight line.

step-by-step explanation:

the points could be in the shape of a triangle

b is incorrect

c is incorrect because it is saying the immediately don't form one when they are capable of doing so

d is incorrect

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐