Question

The value of c is equal to _____.

A.√82
B.√41
C.√410
D.√841

Answer 1

the answer is (D) 841 ( The value of C is equal to 841)

Answer 2

a^2 + b^2 = c^2(hypotenuse)

a=20^2=400

b=21^2=441

c^2=400+441

c^2=841

take the square root of 841

answer is D