Zalika uses the formula V²=U²+2×a×s. When she substitute, V=4, U=3 and A=7 into the formula. She gets a=6+14S.
is she correct?, show how you worked out your answer.

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

c) yes, because of asa or aas