# **SDG** SDG 7/Affordable and clean energy The tangible benefits of lighting have been documented in many case studies; an analysis in Bangladesh found that over 90% of recently electrified households reported improvements in children's study time, household security, and overall well-being Page 8 **Task: Citizen Math text** You are standing near four electric boxes. Add together all the numbers (digit by digit) of their serial numbers - this will be "x". If "x" represents percentage - fill in the first gap! If "x" represent a \[articular year in 20'th century - what film would win the Cannes Palme d'Or at that year? Fill in the second gap! If "x" is an angle in degrees in a triangle with two sides that are 4m and 7m long, how long will the third side be? fill in the third gap (leave only full meters)! In Bangladesh, over \*\*90\*\*% of recently electrified households reported improvements in children's study time, household security, and overall well-being. The movie is: \*\*Wild at Heart\*\* The third side of a triangle is \*\*8\*\*m long. **Sample solutions** The sum is 90. Percentage is 90% The year is 1990 and the winner was "Wild at Heart" **1)** Use formula c=√(4²+7²)=8.06m **2)** trigonometric equations: tan A = a/b=0.57143132 => A=29.745 deg cos(29.745 deg)=0.868242=b/с=7/c; c=8.06m Movies and film. 59.4572952 24.8899710