Full moon. A whole circle of moon. This is when the entire side of the moon facing the earth is visible, which is why we call it a full moon.
Some elements are line shape value , color, proportion/ texture/ shading.
Answer:
The sound level of 41 singers is approximately 79.52 dB.
Explanation:
As the sound level is given as 63.4 dB
The Intensity to Sound level relation is given as

Here β is given as 63.4 dB
I is to be calculated for 1 singer
I_o is constant as 10⁻¹²
So the equation is given as

Now as there are 41 singers so their I is given as

Now the value of sound level is given as

Draw an isosceles trapezoid which has two parallel sides (the bases) and then two equal sides that. The angles between the smaller parallel side and the equal sides will form obtuse angles, and the angles formed by the larger parallel side and the equal sides will make acute angles.
I would put the tools together by pining them first to give me a idea