As shown in a figure, there are rectangle ABCD and right triangle PQR. Rectangle ABCD moves at the speed of 1 cm/s to the right along the straight line XY from the position of a figure.
(1) Find the area of the portion with which the rectangle and the triangle have overlapped in 2 seconds.
(2) When it is in 3 seconds or more, the area of the portion with which the rectangle and the triangle have overlapped may become 2 cm2.
Find the time from the beginning of movement.
(1) Find the area of the portion with which the rectangle and the triangle have overlapped in 2 seconds.
(2) When it is in 3 seconds or more, the area of the portion with which the rectangle and the triangle have overlapped may become 2 cm2.
Find the time from the beginning of movement.
Answer
(1) 23/12 cm2
(2) 13/3 seconds
(2) 13/3 seconds
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