All of the following pairs are corresponding sides in a similar triangle except A. RS and RT
B. RX and TX
C. RX and SX
D. XS and TS ​

A and D

Step-by-step explanation:

Isosceles triangles have two equal sides and angles, which are corresponding sides and angles.

Angle RTS is an isosceles triangle with RT and TS as corresponding sides, and not RS to either sides.

Angle SXT is also an isosceles  triangle with XS and TX as the corresponding sides and not TS to either of both.

So, RS and RT, as well as XS and TS are not sides that are not cooresponding.

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2