Which choice shows three lengths cannot be the lengths of the three sides of a triangle a. 2cm, 8cm, 8cm b. 2cm, 3cm, 6cm c. 4cm, 5cm, 7cm d. 5cm, 6cm, 9cm

the answer is b

Step-by-step explanation:

the sum of the 2 smallest sides must be greater than the 3rd side in order for it to be a triangle

but in B, the sum of the 2 smallest sides is less than the 3rd side

hope this helps

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse