Answer:
see explanation
Step-by-step explanation:
Using converse of Pythagoras' identity
If the square of the longest side is equal to the sum of the squares on the other 2 sides then the triangle is right.
longest side = 12 , then 12² = 144
3² + 9² = 9 + 81 = 90 ≠ 144
Thus the triangle is not right.
No
For this triangle to be a right triangle the following has to happen:
a^2 + b^2 = c^2
a=3, b=9, c= 12
3^2+9^2 does not equal 12^2
9+81 = 90 12^2 = 144
90 does not equal 144 so is not a right triangle
3
1/5 × 15
= 15/5
= 3 (would love if you could mark me the brainliest :))
=3^3a(3^2-3)/6x3^3a
=3^3a(9-3)/6x3^3a
=3^3ax6/3^3ax6
=1
40+39=79
10 times 4+30+9
40*39=79
whats the question
