That is a hip roof.
Valley
can a line have two slopes
The slopes are negative reciprocals.
You have to know the slopes of both lines. -- Take the two slopes. -- The lines are perpendicular if (one slope) = -1/(the other slope), or the product of the slopes equals to -1.
If the gable is formed by the two slopes and a horizontal line, it is called a gable roof.
A roof with two slopes and gables at each end is commonly referred to as simply, a gable roof.
That is a hip roof.
A gable is a roof form where two oppositely sloping roof planes meet at a ridge, and the wall below and at right angles to both these roofs continues up to the ridgeline, forming a triangle of wall between the two roof slopes.
A roof with two distinct slopes. Usually the upper part of the roof has a shallow pitch (slope) and the part near the wall is steep. A roof with two distinct slopes. Usually the upper part of the roof has a shallow pitch (slope) and the part near the wall is steep.
A roof with only two sloping surfaces and gables at each end is called a gable roof.
A gambrell roof is a gabeld roof with double slopes on each side. The lower slopes have steeper pitches than the upper upper slopes.
gambrel
Which gently slopes from roof peak to eaves helps to combat bittrer winter winds
Concave roof is a roof in the form of a dome or circular shape. A concave roof is one which slopes downward toward the center. You can remember this by thinking the roof is "cave"-ing in.
Valley
can a line have two slopes