Answer:
i know that the first one is not equivlent but i dont know about the others
Step-by-step explanation:
ANSWER
C) Triangle
EXPLANATION
Solving a triangle is the process of calculating unknown side lengths or angle measures of a triangle if certain of the side lengths and/or angle measures are known.
We use the sine rule and cosine rule to find the missing sides and angles.
If the triangle has a right angle, then this is a special case, where we can use the trigonometric ratios and the Pythagoras theorem to find the unknown angles and sides.
the product of five times a number and nine the difference of nine times a number and five the sum of five times a number and five the difference of five times a number and nine
