Question

Help please thank you

Answer 1

172

Explanation:

a triangle all together has 180 degrees on it

10+8=18

180-18=172

(it doesn't sound right but that's how I learned it)

Answer 2

The length of the third side is 6

Explanation:

Using Pythagorean theorem:

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

where,

c = the longest side ( 10 )

b = one of the other sides ( 8 )

a = the last side ( the missing one - assume it's a )

step1: sub the values in the formula:

`10^(2) =8^(2) +a^(2)`

step2: simplify the numbers:

`100=64+a^(2)`

step3: subtract 64 from both sides:

`a^(2) =36`

step4: take the square root for both sides:

a = √36

step5: simplify to get a:

a = 6

so the length of the third side is 6