Answer:
right angle ( right )
Step-by-step explanation:
Pythagoras' theorem only works for right-angled triangles, so you can use it to test whether a triangle has a right angle or not. In the triangle above, if a 2 < b 2 + c 2 the angle is acute.
5cm+6cm=11cm
Adding the two,
Option B and D
Multiply 80 by 1/10
Divide 80 by 10
f(- 3) = 18
Substitute x = - 3 into f(x) , that is
f(- 3) = 2(- 3)² = 2(9) = 18
