Answer:
two and a half
Step-by-step explanation:
We now look at a right-angled triangle with sides a, b and c, as shown opposite. Pythagoras' Theorem states that, for any right-angled triangle, the area of the square on the hypotenuse is equal to the sum of the areas of the squares on the two shorter sides.
Remember that parentheses come first. Follow PEMDAS
Answer:
18
Step-by-step explanation:
= -4 x (-5) - 2
= 20 - 2
= 18
Every triangles 3 angles will always add up to 180 degrees
The reason this is true in your problem is because of the corresponding angles and supplementary angles.
Hope this helps
