Question

Triangle ABC has side lengths 8 cm, 17 cm, and x cm. The side length of x is shorter than the longest side. What does the
value of x need to be in order for the triangle to be considered a right triangle?
A 4 cm
B. 9 cm
C. 12 cm
D. 15 cm
​

Answer 1

Answer:

Answer is D)15cm

According to Pythagoras theorem,

17square=8square + x square

289 = 64 + x square

225 = x square

15 = x

hope that will help

Answer 2

Answer:

Answer:

(x+2) +( x+16) + (x+18)=180

x+x+x+2+16+18= 180

3x+36= 180

3x=180-36

3x=144

x=144/3

x=48

(x+2) =48+2=50

(x+16)=48+16=64

(x+18)= 48+18=66

Step-by-step explanation:

this will help you