Figure 1 shows a pictorial view of a bracket. Draw the following views in first angle projection: a) Front elevation from arrow direction b) An end elevation c) A plan. Include six major dimensions. Show hidden details

Construct a vertical radius OC perpendicular to AB.

With C as the center and radius CN, draw an arc that intersects the circle at points D and E.

33. b) Construct a triangle with base angles 60° and 45° and an altitude of 76 mm.

Let the triangle be ABC, with base BC and apex A. Let D be the foot of the altitude from A to BC, so AD is the altitude.
Given altitude $AD = 76 \text{ mm}$, base angle $\angle B = 60^\circ$, and base angle $\angle C = 45^\circ$.
In right-angled triangle ABD, $\angle BAD = 90^\circ - \angle B = 90^\circ - 60^\circ = 30^\circ$.
In right-angled triangle ACD, $\angle CAD = 90^\circ - \angle C = 90^\circ - 45^\circ = 45^\circ$.

Follow these steps to construct the triangle:

This line will contain the base BC of the triangle.

Construct a perpendicular line, $L_2$, to $L_1$ at point D.

Point A will be the apex of the triangle.

This line segment will intersect $L_1$ at point B.

This line segment will intersect $L_1$ at point C.