As shown in a figure, there is a concrete block of a rectangular prism and a streetlight which stands at right angles from point A on the level ground.
When the light of the streetlight is on, express the portion (except for the ground on which the concrete block is put) of the shadow of the concrete block made on the surface of the ground which is seen from the right above by drawing slash in the figure of the answer.
Moreover, find the area of the slash portion.
All the measure of the number in a figure are set to meter.
When the light of the streetlight is on, express the portion (except for the ground on which the concrete block is put) of the shadow of the concrete block made on the surface of the ground which is seen from the right above by drawing slash in the figure of the answer.
Moreover, find the area of the slash portion.
All the measure of the number in a figure are set to meter.
