Decagon = 10 sides or 10 anglesTotal angle is equal to 360°
360° ÷ 10 = 36°
I haven't seen the image of A, that is why, I started with angle A as 36°
∠A = 36°∠B = 36° + 36° = 72°∠C = 72° + 36° = 108∠D = 108° + 36° = 144°∠E = 144° + 36° = 180°∠F = 180° + 36° = 216°∠G = 216° + 36° = 252°∠H = 252° + 36° = 288°∠I = 288° + 36° = 324°∠J = 324° + 36° = 360°
Answer:
15
Step-by-step explanation:
E is 10 plus the 5
Answer:
Step-by-step explanation:
area of side surface=50×20+20×35=1000+700=1700 m²
voume of solid=1700×12=204,00 m³
