Question

PLEASE CAN ANYBODY HELP ME ON THIS????? Determine the length of CD

(no links as answers)

A)

6.32 units

B)

9.17 units

C)

10.77 units

D)

3.74 units

Answer 1

it’s d 3.74 units hope this help

Answer 2

A. 6.32 units

Explanation:

CA²+CB² = (10+4)² = 196 ...(1)

CA²-CD² = 4² = 16 ...(2)

CB²-CD² = 10² = 100 ...(3)

(2)+(3) CA²+CB²-2CD² = 116 ...(4)

(1)-(4) 2CD² = 196-116 = 80

CD² = 40

CD = 6.32