Question

find the area of the largest triangle that can be e inscribed in a semicircle of radius 21 CM​

Answer 1

Step-by-step explanation:

693 sq cm

i hope this answer may help you

Answer 2

Answer:

area of semi circle is, r=d/2=21/2

½*22/7*21/2*21/2=11/7*441/4=11/4*63=173.25

we want a triangle with largest area

we know one side already i. e. base of semi circle

area of ∆=½*21*height

heights magnitude is only more at radius, so we take radius as height

now,

½*21*21/2=441/4=110.25