An automobile lamp's reflector is to be 4 inches across and 2 inches deep. Find an equation that models the reflector and indicate how far the bulb be from the bottom.

61. Determine a área de um triângulo cujos lados têm \( 4 \mathrm{~cm}, 6 \mathrm{~cm} \) e 8 cm de comprimento.

৫. निচের কোন বিন্দুট্টি \( x \) অক্ষের উপর অবস্থিত? \( \begin{array}{lr}\text { ক }(0,1) & \text { খ }(1,1) \\ \text { গ }(0,-1) & \text { ( }(1,0)\end{array} \)

Let \( v \) be the vector from initial point \( P_{1} \) to terminal point \( P_{2} \). Write \( v \) in terms of \( i \) and \( j \). \( P_{1}=(-3,8), P_{2}=(-5,2) \) \( v=\square \) (Type your answer in terms of \( i \) and \( j \).

1) Prove that, \( b^{2}=a^{2}+c^{2}-2 a c \cos B \)

A pizza has a diameter of 12 inches. How much area does the pizza cover? (Use \(\pi \approx 3.14\))