It is said that sedimentary rocks are superficially most widespread rocks, forming more than 75% of exposed surface of earth.

Most sedimentary rocks are deposited under conditions which favour development of distinct layers piled up one above anor, from bottom to top. These layers also called beds or strata.

The equation to calculate True thickness is given by
True thickness = Width of outcrop * Sin 30�
By substitution and calculation, we get 180 m.
True thickness = 360 * sin (30�) = 180 m

The definition of dip is ?The maximum angle of inclination of a layer of a rock with horizontal?. It is expressed both in terms of degree of inclination and direction of inclination.

Igneous rocks are formed from cooling and crystallization of hot molten material called magma/lava depending on place of occurrence. The magma gets intruded or injected into pre-existing rocks of any type- called host rocks and takes variously shaped forms on cooling. These forms are commonly termed as Intrusion.

Stratification and lamination are most common primary structures of sedimentary rocks; crystalline structure is typical of igneous rocks and foliation is a typical primary structure of metamorphic rocks.

The study of rock composition and type of rock is not done under outcrop dimensions whereas rest are thoroughly studied under topic.

The direction of dip is determined with a simple compass whereas angle of dip is determined with an instrument called clinometer, which comes built in with compass.

The basic definition of structural geology is ? branch of geology which deals with morphology, classification, mechanism and causes of development of se rock structures?. Hence answer Structural Geology.

The types of dips are primary, secondary, local and regional. Widespread dip is not considered as a dip.